diff --git a/Grid/build-grid.sh b/Grid/build-grid.sh
new file mode 100755
index 0000000..c8af0a4
--- /dev/null
+++ b/Grid/build-grid.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1090,SC1091
+
+set -euo pipefail
+
+if (( $# != 2 )); then
+    echo "usage: $(basename "$0") <environment directory> <config>" 1>&2
+    exit 1
+fi
+env_dir=$1
+cfg=$2
+
+call_dir=$(pwd -P)
+cd "${env_dir}"
+env_dir=$(pwd -P)
+cd "${call_dir}"
+build_dir="${env_dir}/build/Grid/${cfg}"
+if [ -d "${build_dir}" ]; then
+    echo "error: directory '${build_dir}' exists"
+    exit 1
+fi
+mkdir -p "${build_dir}"
+source "${env_dir}/env.sh"
+entry=$(jq ".configs[]|select(.name==\"${cfg}\")" "${env_dir}"/grid-config.json)
+IFS=" " read -r -a args <<< "$(echo "${entry}" | jq -r ".\"config-options\"")"
+env_script=$(echo "${entry}" | jq -r ".\"env-script\"")
+cd "${build_dir}" || return
+source "${env_dir}/${env_script}"
+extra_env=$(mktemp)
+echo "${entry}" | jq -r '.env|to_entries|map("export \(.key)='\''\(.value|tostring)'\''")|.[]' > "${extra_env}"
+commit=$(echo "${entry}" | jq -r ".commit")
+git clone https://github.com/paboyle/Grid.git "${build_dir}"
+cd "${build_dir}"
+git checkout "${commit}"
+./bootstrap.sh
+mkdir build; cd build
+source "${extra_env}"
+../configure --prefix="${env_dir}/prefix/grid_${cfg}" "${args[@]}"
+make -j128
+make install
+rm -rf "${extra_env}"
+cd "${call_dir}"