diff --git a/DESCRIPTION b/DESCRIPTION
index 3354e82..78c4122 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -29,6 +29,7 @@ Collate:
     'bricks_from_data.R'
     'bricks_to_3d.R'
     'collect_bricks.R'
+    'coord_brick.R'
     'geom_brick.R'
     'geom_brick_col.R'
     'geom_brick_point.R'
diff --git a/NAMESPACE b/NAMESPACE
index 54476e3..4f1a01f 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,6 +1,7 @@
 # Generated by roxygen2: do not edit by hand
 
 export("%>%")
+export(CoordBrick)
 export(GeomBrick)
 export(GeomBrickCol)
 export(bricks_from_coords)
@@ -9,6 +10,7 @@ export(bricks_from_table)
 export(collect_3d)
 export(collect_bricks)
 export(convert_to_match_color)
+export(coord_brick)
 export(display_3d)
 export(display_bricks)
 export(display_colors)
diff --git a/R/coord_brick.R b/R/coord_brick.R
new file mode 100644
index 0000000..a8c3511
--- /dev/null
+++ b/R/coord_brick.R
@@ -0,0 +1,30 @@
+#' Cartesian coordinates with fixed "aspect ratio"
+#'
+#' A fixed scale coordinate system forces a specified ratio between the
+#' physical representation of data units on the axes. The ratio represents the
+#' number of units on the y-axis equivalent to one unit on the x-axis.
+#'
+#' @export
+#' @param ratio aspect ratio, expressed as `y / x`
+#' 
+#' # Resize the plot to see that the specified aspect ratio is maintained
+coord_brick <- function(ratio = 1, xlim = NULL, ylim = NULL, expand = TRUE, clip = "on") {
+  ggproto(NULL, CoordBrick,
+          limits = list(x = xlim, y = ylim),
+          ratio = ratio,
+          expand = expand,
+          clip = clip
+  )
+}
+
+
+
+#' @rdname brickr-ggproto
+#' @export
+CoordBrick <- ggproto("CoordBrick", CoordCartesian,
+                      is_free = function() FALSE,
+                      
+                      aspect = function(self, ranges) {
+                        1 * self$ratio
+                      }
+)
\ No newline at end of file
diff --git a/man/brickr-ggproto.Rd b/man/brickr-ggproto.Rd
index bb80495..8e8e54b 100644
--- a/man/brickr-ggproto.Rd
+++ b/man/brickr-ggproto.Rd
@@ -1,8 +1,9 @@
 % Generated by roxygen2: do not edit by hand
-% Please edit documentation in R/geom_brick.R, R/geom_brick_col.R,
-%   R/geom_brick_point.R, R/resizing_text_grob.R
+% Please edit documentation in R/coord_brick.R, R/geom_brick.R,
+%   R/geom_brick_col.R, R/geom_brick_point.R, R/resizing_text_grob.R
 \docType{data}
-\name{GeomBrick}
+\name{CoordBrick}
+\alias{CoordBrick}
 \alias{GeomBrick}
 \alias{GeomBrickCol}
 \alias{GeomStud}
@@ -11,8 +12,10 @@
 \alias{preDrawDetails.resizingTextGrob}
 \alias{postDrawDetails.resizingTextGrob}
 \title{GeomBrick}
-\format{An object of class \code{GeomStud} (inherits from \code{Geom}, \code{ggproto}, \code{gg}) of length 5.}
+\format{An object of class \code{CoordBrick} (inherits from \code{CoordCartesian}, \code{Coord}, \code{ggproto}, \code{gg}) of length 3.}
 \usage{
+CoordBrick
+
 GeomStud
 
 resizingTextGrob(...)
diff --git a/man/coord_brick.Rd b/man/coord_brick.Rd
new file mode 100644
index 0000000..db04719
--- /dev/null
+++ b/man/coord_brick.Rd
@@ -0,0 +1,17 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/coord_brick.R
+\name{coord_brick}
+\alias{coord_brick}
+\title{Cartesian coordinates with fixed "aspect ratio"}
+\usage{
+coord_brick(ratio = 1, xlim = NULL, ylim = NULL, expand = TRUE,
+  clip = "on")
+}
+\arguments{
+\item{ratio}{aspect ratio, expressed as \code{y / x}Resize the plot to see that the specified aspect ratio is maintained}
+}
+\description{
+A fixed scale coordinate system forces a specified ratio between the
+physical representation of data units on the axes. The ratio represents the
+number of units on the y-axis equivalent to one unit on the x-axis.
+}