diff --git a/README.md b/README.md
index 9f835bb..b91f915 100644
--- a/README.md
+++ b/README.md
@@ -104,6 +104,7 @@ wideriver \
     --outer-gaps                   0           \
     --border-width                 2           \
     --border-width-monocle         0           \
+    --border-width-smart-gaps      0           \
     --border-color-focused         "0x93a1a1"  \
     --border-color-focused-monocle "0x586e75"  \
     --border-color-unfocused       "0x586e75"  \
@@ -322,6 +323,8 @@ Gaps, in pixels, between windows may be injected. They are off by default.
 
 `--smart-gaps` automatically hides the gaps when there is only one view or monocle layout.
 
+`--border-width-smart-gaps` the border width for when smart gaps hides the gaps, excluding monocle layout. For a seamless experience, set this to the same value as `--border-width-monocle`
+
      ---------------------------------------------------------- 
     | o    o    o    o    o    o    o    o    o    o    o    o |
     |    ----------------------     -----------------------    |
@@ -382,6 +385,7 @@ Should install under `/usr/local`
 
       --border-width                  pixels                                2           0 <= width
       --border-width-monocle          pixels                                0           0 <= width
+      --border-width-smart-gaps       pixels                                0           0 <= width
 
       --border-color-focused          0xRRGGBB[AA]                          0x93a1a1
       --border-color-focused-monocle  0xRRGGBB[AA]                          0x586e75
@@ -439,6 +443,9 @@ Border width for all layouts except monocle, default `2`, minimum `0`.
 `--border-width-monocle` *pixels*  
 Border width for monocle layout, default `0`, minimum `0`.
 
+`--border-width-smart-gaps` *pixels*  
+Border width for when smart gaps hides the gaps for all layouts except monocle, default `0`, minimum `0`. Has no effect if `--no-smart-gaps`.
+
 `--border-color-focused` `0x`*RRGGBB*\[*AA*\]  
 Border color for focused views in all layouts excluding monocle, default `0x93a1a1`.
 
diff --git a/config.mk b/config.mk
index d184540..bd7d8e7 100644
--- a/config.mk
+++ b/config.mk
@@ -1,4 +1,4 @@
-VERSION ?= "1.1.1-SNAPSHOT"
+VERSION ?= "1.2.0-SNAPSHOT"
 
 RIVER_LAYOUT_V3_VERSION = 2
 
diff --git a/doc/templ/20.man.readme.md b/doc/templ/20.man.readme.md
index 25a4223..6026973 100644
--- a/doc/templ/20.man.readme.md
+++ b/doc/templ/20.man.readme.md
@@ -271,6 +271,8 @@ Gaps, in pixels, between windows may be injected. They are off by default.
 
 `--smart-gaps` automatically hides the gaps when there is only one view or monocle layout.
 
+`--border-width-smart-gaps` the border width for when smart gaps hides the gaps, excluding monocle layout.
+For a seamless experience, set this to the same value as `--border-width-monocle`
 ```
  ---------------------------------------------------------- 
 | o    o    o    o    o    o    o    o    o    o    o    o |
diff --git a/doc/templ/40.man.readme.md b/doc/templ/40.man.readme.md
index d8c0e66..1e9bc85 100644
--- a/doc/templ/40.man.readme.md
+++ b/doc/templ/40.man.readme.md
@@ -41,6 +41,10 @@ The default value is best suited to ultrawide monitors, a value of `0.5` may be
 `--border-width-monocle` *pixels*
 :   Border width for monocle layout, default `0`, minimum `0`.
 
+`--border-width-smart-gaps` *pixels*
+:   Border width for when smart gaps hides the gaps for all layouts except monocle, default `0`, minimum `0`.
+Has no effect if `--no-smart-gaps`.
+
 `--border-color-focused` `0x`*RRGGBB*[*AA*]
 :   Border color for focused views in all layouts excluding monocle, default `0x93a1a1`.
 
diff --git a/inc/cfg.h b/inc/cfg.h
index ebc386d..96bae8d 100644
--- a/inc/cfg.h
+++ b/inc/cfg.h
@@ -20,6 +20,9 @@
 
 #define SMART_GAPS_DEFAULT false
 
+#define BORDER_WIDTH_SMART_GAPS_MIN 0
+#define BORDER_WIDTH_SMART_GAPS_DEFAULT 0
+
 #define INNER_GAPS_MIN 0
 #define INNER_GAPS_DEFAULT 0
 
@@ -50,6 +53,7 @@ struct Cfg {
 	uint32_t count_wide_left;
 	double ratio_wide;
 	bool smart_gaps;
+	uint32_t border_width_smart_gaps;
 	uint32_t inner_gaps;
 	uint32_t outer_gaps;
 	size_t border_width;
@@ -68,6 +72,7 @@ bool cfg_set_ratio_master(const char *s);
 bool cfg_set_count_wide_left(const char *s);
 bool cfg_set_ratio_wide(const char *s);
 void cfg_set_smart_gaps(bool smart_gaps);
+bool cfg_set_border_width_smart_gaps(const char *s);
 bool cfg_set_inner_gaps(const char *s);
 bool cfg_set_outer_gaps(const char *s);
 bool cfg_set_border_width(const char *s);
diff --git a/inc/displ.h b/inc/displ.h
index 1a8b27b..e26a7ad 100644
--- a/inc/displ.h
+++ b/inc/displ.h
@@ -3,6 +3,7 @@
 
 #include <stdbool.h>
 #include <stddef.h>
+#include <stdint.h>
 
 #include "output.h"
 #include "tag.h"
@@ -42,6 +43,6 @@ bool displ_init(void);
 void displ_destroy(void);
 
 // request style as per tag, output must be focused or no focus reported (startup case)
-void displ_request_style(const struct Output *output, const struct Tag *tag);
+void displ_request_style(const struct Output *output, const struct Tag *tag, const uint32_t view_count);
 
 #endif // DISPL_H
diff --git a/man/wideriver.1 b/man/wideriver.1
index 777041e..62d5410 100644
--- a/man/wideriver.1
+++ b/man/wideriver.1
@@ -1,7 +1,7 @@
 '\" t
 .\" Automatically generated by Pandoc 3.1.8
 .\"
-.TH "WIDERIVER" "1" "2024/04/23" "wideriver" "User Manuals"
+.TH "WIDERIVER" "1" "2024/05/28" "wideriver" "User Manuals"
 .SH NAME
 \f[CR]wideriver\f[R] - tiling window manager for the river wayland compositor
 .SH SYNOPSIS
@@ -146,6 +146,7 @@ wideriver \[rs]
     --outer-gaps                   0           \[rs]
     --border-width                 2           \[rs]
     --border-width-monocle         0           \[rs]
+    --border-width-smart-gaps      0           \[rs]
     --border-color-focused         \[dq]0x93a1a1\[dq]  \[rs]
     --border-color-focused-monocle \[dq]0x586e75\[dq]  \[rs]
     --border-color-unfocused       \[dq]0x586e75\[dq]  \[rs]
@@ -340,6 +341,9 @@ They are off by default.
 \f[CR]--outer-gaps\f[R] (\f[CR]o\f[R]) are between the edge of the screen and windows.
 .PP
 \f[CR]--smart-gaps\f[R] automatically hides the gaps when there is only one view or monocle layout.
+.PP
+\f[CR]--border-width-smart-gaps\f[R] the border width for when smart gaps hides the gaps, excluding monocle layout.
+For a seamless experience, set this to the same value as \f[CR]--border-width-monocle\f[R]
 .IP
 .EX
  ---------------------------------------------------------- 
@@ -401,6 +405,10 @@ Border width for all layouts except monocle, default \f[CR]2\f[R], minimum \f[CR
 \f[CR]--border-width-monocle\f[R] \f[I]pixels\f[R]
 Border width for monocle layout, default \f[CR]0\f[R], minimum \f[CR]0\f[R].
 .TP
+\f[CR]--border-width-smart-gaps\f[R] \f[I]pixels\f[R]
+Border width for when smart gaps hides the gaps for all layouts except monocle, default \f[CR]0\f[R], minimum \f[CR]0\f[R].
+Has no effect if \f[CR]--no-smart-gaps\f[R].
+.TP
 \f[CR]--border-color-focused\f[R] \f[CR]0x\f[R]\f[I]RRGGBB\f[R][\f[I]AA\f[R]]
 Border color for focused views in all layouts excluding monocle, default \f[CR]0x93a1a1\f[R].
 .TP
diff --git a/src/args.c b/src/args.c
index f731fa3..28b7066 100644
--- a/src/args.c
+++ b/src/args.c
@@ -22,17 +22,18 @@ static struct option cli_long_options[] = {
 	{ "ratio-wide",                   required_argument, 0, 0, }, // 6
 	{ "smart-gaps",                   no_argument,       0, 0, }, // 7
 	{ "no-smart-gaps",                no_argument,       0, 0, }, // 8
-	{ "inner-gaps",                   required_argument, 0, 0, }, // 9
-	{ "outer-gaps",                   required_argument, 0, 0, }, // 10
-	{ "border-width",                 required_argument, 0, 0, }, // 11
-	{ "border-width-monocle",         required_argument, 0, 0, }, // 12
-	{ "border-color-focused",         required_argument, 0, 0, }, // 13
-	{ "border-color-focused-monocle", required_argument, 0, 0, }, // 14
-	{ "border-color-unfocused",       required_argument, 0, 0, }, // 15
-	{ "help",                         no_argument,       0, 0, }, // 16
-	{ "help-defaults",                no_argument,       0, 0, }, // 17
-	{ "log-threshold",                required_argument, 0, 0, }, // 18
-	{ "version",                      no_argument,       0, 0, }, // 19
+	{ "border-width-smart-gaps",      required_argument, 0, 0, }, // 9
+	{ "inner-gaps",                   required_argument, 0, 0, }, // 10
+	{ "outer-gaps",                   required_argument, 0, 0, }, // 11
+	{ "border-width",                 required_argument, 0, 0, }, // 12
+	{ "border-width-monocle",         required_argument, 0, 0, }, // 13
+	{ "border-color-focused",         required_argument, 0, 0, }, // 14
+	{ "border-color-focused-monocle", required_argument, 0, 0, }, // 15
+	{ "border-color-unfocused",       required_argument, 0, 0, }, // 16
+	{ "help",                         no_argument,       0, 0, }, // 17
+	{ "help-defaults",                no_argument,       0, 0, }, // 18
+	{ "log-threshold",                required_argument, 0, 0, }, // 19
+	{ "version",                      no_argument,       0, 0, }, // 20
 	{ 0,                              0,                 0, 0, }
 };
 
@@ -106,68 +107,75 @@ void args_cli(int argc, char **argv) {
 				cfg_set_smart_gaps(false);
 				break;
 			case 9:
+				if (!cfg_set_border_width_smart_gaps(optarg)) {
+					log_error("invalid --border-width-smart-gaps '%s'\n", optarg);
+					usage(EXIT_FAILURE);
+					return;
+				}
+				break;
+			case 10:
 				if (!cfg_set_inner_gaps(optarg)) {
 					log_error("invalid --inner-gaps '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 10:
+			case 11:
 				if (!cfg_set_outer_gaps(optarg)) {
 					log_error("invalid --outer-gaps '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 11:
+			case 12:
 				if (!cfg_set_border_width(optarg)) {
 					log_error("invalid --border-width '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 12:
+			case 13:
 				if (!cfg_set_border_width_monocle(optarg)) {
 					log_error("invalid --border-width-monocle '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 13:
+			case 14:
 				if (!cfg_set_border_color_focused(optarg)) {
 					log_error("invalid --border-color-focused '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 14:
+			case 15:
 				if (!cfg_set_border_color_focused_monocle(optarg)) {
 					log_error("invalid --border-color-focused-monocle '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 15:
+			case 16:
 				if (!cfg_set_border_color_unfocused(optarg)) {
 					log_error("invalid --border-color-unfocused '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 16:
+			case 17:
 				usage(EXIT_SUCCESS);
 				return;
-			case 17:
+			case 18:
 				usage_defaults();
 				return;
-			case 18:
+			case 19:
 				if (!log_set_threshold(optarg)) {
 					log_error("invalid --log-threshold '%s'\n", optarg);
 					usage(EXIT_FAILURE);
 					return;
 				}
 				break;
-			case 19:
+			case 20:
 				fprintf(stdout, "wideriver version %s\n", VERSION);
 				exit(EXIT_SUCCESS);
 				return;
@@ -190,6 +198,7 @@ void args_cli(int argc, char **argv) {
 	log_info("--outer-gaps                   %u", cfg->outer_gaps);
 	log_info("--border-width                 %u", cfg->border_width);
 	log_info("--border-width-monocle         %u", cfg->border_width_monocle);
+	log_info("--border-width-smart-gaps      %u", cfg->border_width_smart_gaps);
 	log_info("--border-color-focused         %s", cfg->border_color_focused);
 	log_info("--border-color-focused-monocle %s", cfg->border_color_focused_monocle);
 	log_info("--border-color-unfocused       %s", cfg->border_color_unfocused);
diff --git a/src/cfg.c b/src/cfg.c
index 24ec893..ea6acd3 100644
--- a/src/cfg.c
+++ b/src/cfg.c
@@ -16,6 +16,7 @@ struct Cfg c = {
 	.count_wide_left = COUNT_WIDE_LEFT_DEFAULT,
 	.ratio_wide = RATIO_WIDE_DEFAULT,
 	.smart_gaps = SMART_GAPS_DEFAULT,
+	.border_width_smart_gaps = BORDER_WIDTH_SMART_GAPS_DEFAULT,
 	.inner_gaps = INNER_GAPS_DEFAULT,
 	.outer_gaps = OUTER_GAPS_DEFAULT,
 	.border_width = BORDER_WIDTH_DEFAULT,
@@ -129,6 +130,18 @@ void cfg_set_smart_gaps(bool smart_gaps) {
 	c.smart_gaps = smart_gaps;
 }
 
+bool cfg_set_border_width_smart_gaps(const char *s) {
+	char *endptr;
+	long l = strtol(s, &endptr, 10);
+
+	if (*s == '\0' || endptr == s || *endptr != '\0' || l < BORDER_WIDTH_SMART_GAPS_MIN) {
+		return false;
+	} else {
+		c.border_width_smart_gaps = l;
+		return true;
+	}
+}
+
 bool cfg_set_inner_gaps(const char *s) {
 	char *endptr;
 	long l = strtol(s, &endptr, 10);
diff --git a/src/displ.c b/src/displ.c
index 125daf0..b94b6fd 100644
--- a/src/displ.c
+++ b/src/displ.c
@@ -1,4 +1,5 @@
 #include <stdbool.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <string.h>
 #include <wayland-client-core.h>
@@ -39,11 +40,14 @@ void complete_border_color_unfocused(void) {
 	d.style_current.border_color_unfocused = d.style_desired.border_color_unfocused;
 }
 
-void desire_style(const struct Tag *tag) {
+void desire_style(const struct Tag *tag, const uint32_t view_count) {
 	if (tag) {
 		if (tag->layout_cur == MONOCLE) {
 			d.style_desired.border_width = cfg->border_width_monocle;
 			d.style_desired.border_color_focused = cfg->border_color_focused_monocle;
+		} else if (view_count == 1 && tag->smart_gaps) {
+			d.style_desired.border_width = cfg->border_width_smart_gaps;
+			d.style_desired.border_color_focused = cfg->border_color_focused;
 		} else {
 			d.style_desired.border_width = cfg->border_width;
 			d.style_desired.border_color_focused = cfg->border_color_focused;
@@ -167,7 +171,7 @@ void displ_destroy(void) {
 	memset(&d, 0, sizeof(struct Displ));
 }
 
-void displ_request_style(const struct Output *output, const struct Tag *tag) {
+void displ_request_style(const struct Output *output, const struct Tag *tag, const uint32_t view_count) {
 	if (!output || !tag)
 		return;
 
@@ -177,7 +181,7 @@ void displ_request_style(const struct Output *output, const struct Tag *tag) {
 	}
 
 	// desire
-	desire_style(tag);
+	desire_style(tag, view_count);
 
 	// execute
 	control_command_style(d.style_desired, d.style_current);
diff --git a/src/listener_river_layout.c b/src/listener_river_layout.c
index d89b623..82950f6 100644
--- a/src/listener_river_layout.c
+++ b/src/listener_river_layout.c
@@ -54,7 +54,7 @@ static void layout_handle_layout_demand(void *data,
 	river_layout_v3_commit(output->river_layout, layout_name, serial);
 
 	// maybe style
-	displ_request_style(output, tag);
+	displ_request_style(output, tag, view_count);
 }
 
 static void layout_handle_namespace_in_use(void *data,
diff --git a/src/usage.c b/src/usage.c
index b6bb9d1..ed22531 100644
--- a/src/usage.c
+++ b/src/usage.c
@@ -29,6 +29,7 @@ void usage(const int status) {
 			"\n"
 			"  --border-width                  pixels                                %d           %d <= width\n"
 			"  --border-width-monocle          pixels                                %d           %d <= width\n"
+			"  --border-width-smart-gaps       pixels                                %d           %d <= width\n"
 			"\n"
 			"  --border-color-focused          0xRRGGBB[AA]                          %s\n"
 			"  --border-color-focused-monocle  0xRRGGBB[AA]                          %s\n"
@@ -59,6 +60,7 @@ void usage(const int status) {
 		OUTER_GAPS_DEFAULT, OUTER_GAPS_MIN,
 		BORDER_WIDTH_DEFAULT, BORDER_WIDTH_MIN,
 		BORDER_WIDTH_MONOCLE_DEFAULT, BORDER_WIDTH_MONOCLE_MIN,
+		BORDER_WIDTH_SMART_GAPS_DEFAULT, BORDER_WIDTH_SMART_GAPS_MIN,
 		BORDER_COLOR_FOCUSED_DEFAULT,
 		BORDER_COLOR_FOCUSED_MONOCLE_DEFAULT,
 		BORDER_COLOR_UNFOCUSED_DEFAULT,
@@ -87,6 +89,7 @@ void usage_defaults(void) {
 			"    --outer-gaps                   %d           \\\n"
 			"    --border-width                 %d           \\\n"
 			"    --border-width-monocle         %d           \\\n"
+			"    --border-width-smart-gaps      %d           \\\n"
 			"    --border-color-focused         \"%s\"  \\\n"
 			"    --border-color-focused-monocle \"%s\"  \\\n"
 			"    --border-color-unfocused       \"%s\"  \\\n"
@@ -97,11 +100,10 @@ void usage_defaults(void) {
 		COUNT_WIDE_LEFT_DEFAULT, RATIO_WIDE_DEFAULT,
 		INNER_GAPS_DEFAULT,
 		OUTER_GAPS_DEFAULT,
-		BORDER_WIDTH_DEFAULT, BORDER_WIDTH_MONOCLE_DEFAULT,
+		BORDER_WIDTH_DEFAULT, BORDER_WIDTH_MONOCLE_DEFAULT, BORDER_WIDTH_SMART_GAPS_DEFAULT,
 		BORDER_COLOR_FOCUSED_DEFAULT, BORDER_COLOR_FOCUSED_MONOCLE_DEFAULT, BORDER_COLOR_UNFOCUSED_DEFAULT,
 		log_threshold_name(LOG_THRESHOLD_DEFAULT)
 		);
 
 	exit(EXIT_SUCCESS);
 }
-
diff --git a/tst/tst-args_cli.c b/tst/tst-args_cli.c
index b750871..183c93c 100644
--- a/tst/tst-args_cli.c
+++ b/tst/tst-args_cli.c
@@ -32,7 +32,7 @@ int after_each(void **state) {
 }
 
 void args_parse_cli__valid(void **state) {
-	int argc = 32;
+	int argc = 34;
 	char *argv[] = { "dummy",
 		"--layout", "left",
 		"--layout-alt", "right",
@@ -42,6 +42,7 @@ void args_parse_cli__valid(void **state) {
 		"--count-wide-left", "8",
 		"--ratio-wide", "0.8",
 		"--smart-gaps",
+		"--border-width-smart-gaps", "8",
 		"--inner-gaps", "6",
 		"--outer-gaps", "6",
 		"--border-width", "5",
@@ -62,6 +63,7 @@ void args_parse_cli__valid(void **state) {
 	assert_int_equal(cfg->count_wide_left, 8);
 	assert_float_equal(cfg->ratio_wide, 0.8, 0.001);
 	assert_true(cfg->smart_gaps);
+	assert_int_equal(cfg->border_width_smart_gaps, 8);
 	assert_int_equal(cfg->inner_gaps, 6);
 	assert_int_equal(cfg->outer_gaps, 6);
 	assert_int_equal(cfg->border_width, 5);
@@ -83,6 +85,7 @@ void args_parse_cli__valid(void **state) {
 			"--outer-gaps                   6\n"
 			"--border-width                 5\n"
 			"--border-width-monocle         10\n"
+			"--border-width-smart-gaps      8\n"
 			"--border-color-focused         0xAABBCC\n"
 			"--border-color-focused-monocle 0xDDEEFFA9\n"
 			"--border-color-unfocused       0x001122\n"
@@ -181,6 +184,19 @@ void args_parse_cli__bad_ratio_wide(void **state) {
 	assert_log(ERROR, "invalid --ratio-wide '-1'\n\n");
 }
 
+void args_parse_cli__bad_border_width_smart_gaps(void **state) {
+	int argc = 3;
+	char *argv[] = { "dummy",
+		"--border-width-smart-gaps", "-1",
+	};
+
+	expect_value(__wrap_usage, status, EXIT_FAILURE);
+
+	args_cli(argc, argv);
+
+	assert_log(ERROR, "invalid --border-width-smart-gaps '-1'\n\n");
+}
+
 void args_parse_cli__bad_inner_gaps(void **state) {
 	int argc = 3;
 	char *argv[] = { "dummy",
@@ -295,6 +311,7 @@ int main(void) {
 		TEST(args_parse_cli__bad_ratio_master),
 		TEST(args_parse_cli__bad_count_wide_left),
 		TEST(args_parse_cli__bad_ratio_wide),
+		TEST(args_parse_cli__bad_border_width_smart_gaps),
 		TEST(args_parse_cli__bad_inner_gaps),
 		TEST(args_parse_cli__bad_outer_gaps),
 		TEST(args_parse_cli__bad_border_width),