diff --git a/Makefile b/Makefile
index 062887703..d447bb3b2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,17 +1,31 @@
-build: source/*.ufo build/ttf/*.ttf
-	./build-ttf.sh
-	./build-woff.sh
-	./build-woff2.sh
+default: build
+
+build: ttf webfonts
 
 build-with-dependencies: source/*.ufo build/ttf/*.ttf
 	./build-ttf.sh --install-dependencies
 	./build-woff.sh --install-dependencies
 	./build-woff2.sh --install-dependencies
+	./build-subsets.sh
 
 lint: shellcheck ufolint
 
-shellcheck: build-ttf.sh build-woff.sh build-woff2.sh tools/scripts/install/ttfautohint-build.sh
+shellcheck: build-ttf.sh build-woff.sh build-woff2.sh build-subsets.sh tools/scripts/install/ttfautohint-build.sh
 	$@ $^
 
+ttf: source/*.ufo
+	./build-ttf.sh
+
 ufolint: source/*.ufo
 	$@ $^
+
+webfonts: source/*.ufo build/ttf/*.ttf
+	./build-woff.sh
+	./build-woff2.sh
+	./build-subsets.sh
+
+woff: build/ttf/*.ttf
+	./build-woff.sh
+
+woff2: build/ttf/*.ttf
+	./build-woff2.sh
diff --git a/build-subsets.sh b/build-subsets.sh
new file mode 100755
index 000000000..a476f52e3
--- /dev/null
+++ b/build-subsets.sh
@@ -0,0 +1,428 @@
+#!/bin/sh
+
+# //////////////////////////////////////////////////////////////////////
+#
+# build-subsets.sh
+#  A shell script that builds the Hack web font subsets from UFO source
+#  Copyright 2017 Christopher Simpkins
+#  MIT License
+#
+#  Usage: ./build-subsets.sh
+#
+#  NOTE: must install build dependencies in:
+#        1) build-ttf.sh
+#        2) build-woff.sh
+#        3) build-woff2.sh
+#       before you execute this script.  You can do this with:
+#
+#
+#       $ ./build-ttf.sh --install-dependencies
+#       $ ./build-woff.sh --install-dependencies
+#       $ ./build-woff2.sh --install-dependencies
+#
+# //////////////////////////////////////////////////////////////////////
+
+# ttfautohint local install path from Werner Lemberg's ttfautohint-build.sh install script
+#   - This is revised to ttfautohint on the user's PATH if this local install is not identified
+#     then the identified ttfautohint is used to execute hinting.  Versions of ttfautohint < 1.6 exit with status
+#     code 1 due to use of -R option
+#   - The intent is to support use of ttfautohint installed on a user's PATH (e.g. they've previously installed it)
+TTFAH="$HOME/ttfautohint-build/local/bin/ttfautohint"
+
+# The sfnt2woff-zopfli build directory.
+SFNTWOFF_BUILD="$HOME/sfnt2woff-zopfli-build"
+
+# sfnt2woff-zopfli version
+SFNTWOFF_VERSION="1.1.0"
+SFNTWOFF="sfnt2woff-zopfli-$SFNTWOFF_VERSION"
+
+# Path to sfnt2woff-zopfli executable
+SFNTWOFF_BIN="$SFNTWOFF_BUILD/$SFNTWOFF/sfnt2woff-zopfli"
+ZOPFLI_ITERATIONS="3"
+
+# The woff2 git clone directory.
+WOFF2_BUILD="$HOME"
+# woff2 executable path
+WOFF2_BIN="$WOFF2_BUILD/woff2/woff2_compress"
+
+# The font build directory paths and file paths for the woff builds
+TTF_BUILD="master_ttf"
+
+REGULAR_TTF="Hack-Regular.ttf"
+REGULAR_WOFF_PRE="Hack-Regular.woff"
+REGULAR_WOFF="hack-regular-subset.woff"
+REGULAR_WOFF2_PRE="Hack-Regular.woff2"
+REGULAR_WOFF2="hack-regular-subset.woff2"
+
+BOLD_TTF="Hack-Bold.ttf"
+BOLD_WOFF_PRE="Hack-Bold.woff"
+BOLD_WOFF="hack-bold-subset.woff"
+BOLD_WOFF2_PRE="Hack-Bold.woff2"
+BOLD_WOFF2="hack-bold-subset.woff2"
+
+ITALIC_TTF="Hack-Italic.ttf"
+ITALIC_WOFF_PRE="Hack-Italic.woff"
+ITALIC_WOFF="hack-italic-subset.woff"
+ITALIC_WOFF2_PRE="Hack-Italic.woff2"
+ITALIC_WOFF2="hack-italic-subset.woff2"
+
+BOLDITALIC_TTF="Hack-BoldItalic.ttf"
+BOLDITALIC_WOFF_PRE="Hack-BoldItalic.woff"
+BOLDITALIC_WOFF="hack-bolditalic-subset.woff"
+BOLDITALIC_WOFF2_PRE="Hack-BoldItalic.woff2"
+BOLDITALIC_WOFF2="hack-bolditalic-subset.woff2"
+
+# release directory path for web fonts
+WEB_BUILD="build/web"
+
+# test for number of arguments
+if [ $# -gt 0 ]
+	then
+	    echo "Inappropriate arguments included in your command." 1>&2
+	    echo "Usage: ./build-subsets.sh" 1>&2
+	    exit 1
+fi
+
+# ////////////////////////////////////////
+#
+#
+#  Confirm that dependencies are installed
+#
+#
+# ////////////////////////////////////////
+
+INSTALLFLAG=0
+
+echo "Confirming that build dependencies are installed..."
+echo " "
+
+# fontmake installed
+if ! which fontmake
+	then
+	    echo "fontmake was not found.  Please attempt to install this with ./build-ttf.sh --install-dependencies, then execute this script again" 1>&2
+	    INSTALLFLAG=1
+fi
+
+# fontTools python library can be imported
+if ! python -c "import fontTools"
+	then
+	    echo "The fontTools library was not found.  Please attempt to install this with ./build-ttf.sh --install-dependencies, then execute this script again" 1>&2
+	    INSTALLFLAG=1
+else
+	echo "fontTools Python library identified"
+fi
+
+# ttfautohint installed
+#   - tests for install to local path from ttfautohint-build.sh script
+#   - if not found on this path, tests for install on system PATH - if found, revises TTFAH to the string "ttfautohint" for execution of instruction sets
+if ! [ -f "$TTFAH" ]
+	then
+	    if ! which ttfautohint
+	    	then
+	            echo "ttfautohint was not found.  Please attempt to install this with ./build-ttf.sh --install-dependencies, then execute this script again." 1>&2
+	            INSTALLFLAG=1
+	    else
+	    	TTFAH="ttfautohint"  # revise TTFAH variable to ttfautohint installed on the user's PATH for excecution of hints below
+	    	echo "ttfautohint executable identified"
+	    fi
+	else
+		echo "ttfautohint executable identified"
+fi
+
+# sfntwoff-zopfli installed
+if ! [ -f "$SFNTWOFF_BIN" ]
+	then
+	    echo "sfnt2woff-zopfli was not found.  Please attempt to install this with ./build-woff.sh --install-dependencies, then execute this script again" 1>&2
+	    INSTALLFLAG=1
+else
+	echo "sfnt2woff-zopfli executable identified"
+fi
+
+# woff2 installed
+if ! [ -f "$WOFF2_BIN" ]
+	then
+	    echo "woff2 was not found.  Please attempt to install this with ./build-woff2.sh --install-dependencies, then execute this script again" 1>&2
+	    INSTALLFLAG=1
+else
+	echo "woff2_compress executable identified"
+fi
+
+# if any of the dependency installs failed, exit and do not attempt build, notify user
+if [ $INSTALLFLAG -eq 1 ]
+	then
+	    echo "Build canceled." 1>&2
+	    exit 1
+fi
+
+# /////////////////////////////////////////////
+#
+#
+#  Begin subset ttf font build from UFO source
+#
+#
+# /////////////////////////////////////////////
+
+echo "Starting web font subset build..."
+echo " "
+
+# remove master_ttf directory if a previous build failed + exited early and it was not cleaned up
+if [ -d "master_ttf" ]; then
+	rm -rf master_ttf
+fi
+
+# build regular subset
+
+if ! fontmake --subset -u "source/Hack-Regular.ufo" -o ttf
+	then
+	    echo "Unable to build the Hack-Regular variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+
+# build bold subset
+if ! fontmake --subset -u "source/Hack-Bold.ufo" -o ttf
+	then
+	    echo "Unable to build the Hack-Bold variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+
+# build italic subset
+if ! fontmake --subset -u "source/Hack-Italic.ufo" -o ttf
+	then
+	    echo "Unable to build the Hack-Italic variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+
+# build bold italic subset
+
+if ! fontmake --subset -u "source/Hack-BoldItalic.ufo" -o ttf
+	then
+	    echo "Unable to build the Hack-BoldItalic variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+
+
+# /////////////////////////////////////////////
+#
+#
+#  Post build fixes
+#
+#
+# /////////////////////////////////////////////
+
+# DSIG table fix with adapted fontbakery Python script
+echo " "
+echo "Attempting DSIG table fixes with fontbakery..."
+echo " "
+if ! python postbuild_processing/fixes/fix-dsig.py master_ttf/*.ttf
+	then
+	    echo "Unable to complete DSIG table fixes on the release files"
+	    exit 1
+fi
+
+# fstype value fix with adapted fontbakery Python script
+echo " "
+echo "Attempting fstype fixes with fontbakery..."
+echo " "
+if ! python postbuild_processing/fixes/fix-fstype.py master_ttf/*.ttf
+	then
+	    echo "Unable to complete fstype fixes on the release files"
+	    exit 1
+fi
+
+# /////////////////////////////////////////////
+#
+#
+#  Hinting of ttf subsets
+#
+#
+# /////////////////////////////////////////////
+
+echo " "
+echo "Attempting ttfautohint hinting..."
+echo " "
+# make a temporary directory for the hinted files
+mkdir master_ttf/hinted
+
+# Hack-Regular.ttf
+if ! "$TTFAH" -l 6 -r 50 -x 10 -H 181 -D latn -f latn -w G -W -t -X "" -I -R "master_ttf/Hack-Regular.ttf" -m "postbuild_processing/tt-hinting/Hack-Regular-TA.txt" "master_ttf/Hack-Regular.ttf" "master_ttf/hinted/Hack-Regular.ttf"
+	then
+	    echo "Unable to execute ttfautohint on the Hack-Regular variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+echo "master_ttf/Hack-Regular.ttf subset - successful hinting with ttfautohint"
+
+# Hack-Bold.ttf
+if ! "$TTFAH" -l 6 -r 50 -x 10 -H 260 -D latn -f latn -w G -W -t -X "" -I -R "master_ttf/Hack-Regular.ttf" -m "postbuild_processing/tt-hinting/Hack-Bold-TA.txt" "master_ttf/Hack-Bold.ttf" "master_ttf/hinted/Hack-Bold.ttf"
+	then
+	    echo "Unable to execute ttfautohint on the Hack-Bold variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+echo "master_ttf/Hack-Bold.ttf subset - successful hinting with ttfautohint"
+
+# Hack-Italic.ttf
+if ! "$TTFAH" -l 6 -r 50 -x 10 -H 145 -D latn -f latn -w G -W -t -X "" -I -R "master_ttf/Hack-Regular.ttf" -m "postbuild_processing/tt-hinting/Hack-Italic-TA.txt" "master_ttf/Hack-Italic.ttf" "master_ttf/hinted/Hack-Italic.ttf"
+	then
+	    echo "Unable to execute ttfautohint on the Hack-Italic variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+echo "master_ttf/Hack-Italic.ttf subset - successful hinting with ttfautohint"
+
+# Hack-BoldItalic.ttf
+if ! "$TTFAH" -l 6 -r 50 -x 10 -H 265 -D latn -f latn -w G -W -t -X "" -I -R "master_ttf/Hack-Regular.ttf" -m "postbuild_processing/tt-hinting/Hack-BoldItalic-TA.txt" "master_ttf/Hack-BoldItalic.ttf" "master_ttf/hinted/Hack-BoldItalic.ttf"
+	then
+	    echo "Unable to execute ttfautohint on the Hack-BoldItalic variant subset.  Build canceled." 1>&2
+	    exit 1
+fi
+echo "master_ttf/Hack-BoldItalic.ttf subset - successful hinting with ttfautohint"
+echo " "
+
+# /////////////////////////////////////////////
+#
+#
+#  Build woff subsets
+#
+#
+# /////////////////////////////////////////////
+
+# regular set
+if ! "$SFNTWOFF_BIN" -n $ZOPFLI_ITERATIONS "$TTF_BUILD/$REGULAR_TTF"; then
+	echo "Failed to build $REGULAR_WOFF from $REGULAR_TTF." 1>&2
+	exit 1
+else
+	echo "Regular woff subset successfully built from $REGULAR_TTF"
+fi
+
+# bold set
+if ! "$SFNTWOFF_BIN" -n $ZOPFLI_ITERATIONS "$TTF_BUILD/$BOLD_TTF"; then
+	echo "Failed to build $BOLD_WOFF from $BOLD_TTF" 1>&2
+	exit 1
+else
+	echo "Bold woff subset successfully built from $BOLD_TTF"
+fi
+
+# italic set
+if ! "$SFNTWOFF_BIN" -n $ZOPFLI_ITERATIONS "$TTF_BUILD/$ITALIC_TTF"; then
+	echo "Failed to build $BOLD_WOFF from $ITALIC_TTF" 1>&2
+	exit 1
+else
+	echo "Italic woff subset successfully built from $ITALIC_TTF"
+fi
+
+# bold italic set
+if ! "$SFNTWOFF_BIN" -n $ZOPFLI_ITERATIONS "$TTF_BUILD/$BOLDITALIC_TTF"; then
+	echo "Failed to build $BOLDITALIC_WOFF from $BOLDITALIC_TTF" 1>&2
+	exit 1
+else
+	echo "Bold Italic woff subset successfully built from $BOLDITALIC_TTF"
+fi
+
+# /////////////////////////////////////////////
+#
+#
+#  Build woff2 subsets
+#
+#
+# /////////////////////////////////////////////
+
+echo " "
+
+# regular set
+if ! "$WOFF2_BIN" "$TTF_BUILD/$REGULAR_TTF"; then
+	echo "Failed to build woff2 subset from $REGULAR_TTF." 1>&2
+	exit 1
+else
+	echo "Regular woff2 font subset successfully built from $REGULAR_TTF"
+fi
+
+# bold set
+if ! "$WOFF2_BIN" "$TTF_BUILD/$BOLD_TTF"; then
+	echo "Failed to build woff2 subset from $BOLD_TTF" 1>&2
+	exit 1
+else
+	echo "Bold woff2 subset successfully built from $BOLD_TTF"
+fi
+
+# italic set
+if ! "$WOFF2_BIN" "$TTF_BUILD/$ITALIC_TTF"; then
+	echo "Failed to build woff2 subset from $ITALIC_TTF" 1>&2
+	exit 1
+else
+	echo "Italic woff2 subset successfully built from $ITALIC_TTF"
+fi
+
+# bold italic set
+if ! "$WOFF2_BIN" "$TTF_BUILD/$BOLDITALIC_TTF"; then
+	echo "Failed to build woff2 subset from $BOLDITALIC_TTF" 1>&2
+	exit 1
+else
+	echo "Bold Italic woff2 subset successfully built from $BOLDITALIC_TTF"
+fi
+
+
+# //////////////////////////////////////////////
+#
+#
+#  Move web font subset files to build directory
+#
+#
+# //////////////////////////////////////////////
+
+echo " "
+echo "Moving woff files to build directory..."
+
+# move woff files to appropriate build directory
+mv "$TTF_BUILD/$REGULAR_WOFF_PRE" "$WEB_BUILD/$REGULAR_WOFF"
+mv "$TTF_BUILD/$BOLD_WOFF_PRE" "$WEB_BUILD/$BOLD_WOFF"
+mv "$TTF_BUILD/$ITALIC_WOFF_PRE" "$WEB_BUILD/$ITALIC_WOFF"
+mv "$TTF_BUILD/$BOLDITALIC_WOFF_PRE" "$WEB_BUILD/$BOLDITALIC_WOFF"
+
+if [ -f "$WEB_BUILD/$REGULAR_WOFF" ]; then
+	echo "Regular woff build path: $WEB_BUILD/$REGULAR_WOFF"
+fi
+
+if [ -f "$WEB_BUILD/$BOLD_WOFF" ]; then
+	echo "Bold woff build path: $WEB_BUILD/$BOLD_WOFF"
+fi
+
+if [ -f "$WEB_BUILD/$ITALIC_WOFF" ]; then
+	echo "Italic woff build path: $WEB_BUILD/$ITALIC_WOFF"
+fi
+
+if [ -f "$WEB_BUILD/$BOLDITALIC_WOFF" ]; then
+	echo "Bold Italic woff build path: $WEB_BUILD/$BOLDITALIC_WOFF"
+fi
+
+echo "Moving woff2 files to build directory..."
+
+# move woff files to appropriate build directory
+mv "$TTF_BUILD/$REGULAR_WOFF2_PRE" "$WEB_BUILD/$REGULAR_WOFF2"
+mv "$TTF_BUILD/$BOLD_WOFF2_PRE" "$WEB_BUILD/$BOLD_WOFF2"
+mv "$TTF_BUILD/$ITALIC_WOFF2_PRE" "$WEB_BUILD/$ITALIC_WOFF2"
+mv "$TTF_BUILD/$BOLDITALIC_WOFF2_PRE" "$WEB_BUILD/$BOLDITALIC_WOFF2"
+
+if [ -f "$WEB_BUILD/$REGULAR_WOFF2" ]; then
+	echo "Regular woff build path: $WEB_BUILD/$REGULAR_WOFF2"
+fi
+
+if [ -f "$WEB_BUILD/$BOLD_WOFF2" ]; then
+	echo "Bold woff build path: $WEB_BUILD/$BOLD_WOFF2"
+fi
+
+if [ -f "$WEB_BUILD/$ITALIC_WOFF2" ]; then
+	echo "Italic woff build path: $WEB_BUILD/$ITALIC_WOFF2"
+fi
+
+if [ -f "$WEB_BUILD/$BOLDITALIC_WOFF2" ]; then
+	echo "Bold Italic woff build path: $WEB_BUILD/$BOLDITALIC_WOFF2"
+fi
+
+# //////////////////////////////////////////////
+#
+#
+#  Cleanup temp directory
+#
+#
+# //////////////////////////////////////////////
+
+rm -rf master_ttf
+
diff --git a/build-ttf.sh b/build-ttf.sh
index 231f1e685..c8a591fca 100755
--- a/build-ttf.sh
+++ b/build-ttf.sh
@@ -25,7 +25,7 @@ TTFAH="$HOME/ttfautohint-build/local/bin/ttfautohint"
 if [ $# -gt 1 ]
 	then
 	    echo "Inappropriate arguments included in your command." 1>&2
-	    echo "Usage: ./build.sh (--install-dependencies)" 1>&2
+	    echo "Usage: ./build-ttf.sh (--install-dependencies)" 1>&2
 	    exit 1
 fi