 In 1920 , the Commission built three experimental cemeteries at Le Treport , Forceville and Louvencourt , following the principles outlined in the Kenyon report . Of these , the Forceville Communal Cemetery and Extension was agreed to be the most successful . Having consulted with garden designer Gertrude Jekyll , the architects created a walled cemetery with uniform headstones in a garden setting , augmented by Blomfield 's Cross of Sacrifice and Lutyens ' Stone of Remembrance . After some adjustments , Forceville became the template for the Commission 's building programme . Adjustments were required because all three experimental cemeteries went over budget . To ensure future cemeteries remained within their budget the Commission decided to not build shelters in cemeteries that contained less than 200 graves , to not place a Stone of Remembrance in any cemetery with less than 400 graves , and to limit the height of cemetery walls to 1 metre ( 3 @.@ 3 ft ) . 
 In 1920 , the Commission built three experimental cemeteries at Le Treport , Forceville and Louvencourt , following the principles outlined in the Kenyon report . Of these , the Forceville Communal Cemetery and Extension was agreed to be the most successful . <a href='been_done' title='1'><mark>Having</mark></a> consulted with garden designer Gertrude Jekyll , the architects created a walled cemetery with uniform headstones in a garden setting , augmented by Blomfield <a href='null_genetive' title='2'><mark>'s</mark></a>Cross of Sacrifice and Lutyens <a href='null_genetive' title='3'><mark>'</mark></a>Stone of Remembrance . After some adjustments , Forceville became the template for the Commission <a href='null_genetive' title='4'><mark>'s</mark></a>building programme . Adjustments <a href='uninflect' title='5'><mark>were</mark></a> required because all three experimental cemeteries went over budget . To ensure future cemeteries remained within their budget the Commission decided to not build <a href='negative_concord' title='6'><mark>shelters</mark></a> in <a href='negative_concord' title='7'><mark>cemeteries</mark></a> <a href='null_relcl' title='8'><mark>that</mark></a>contained less than 200 graves , to not place a Stone of Remembrance in <a href='None' title='9'><mark>any</mark></a><a href='negative_concord' title='10'><mark>cemetery</mark></a> with less than 400 <a href='negative_concord' title='11'><mark>graves</mark></a> , and to limit the height of cemetery walls to 1 metre ( 3 @.@ 3 ft ) . 
In 1920 , da Commission built three experimental cemeteries at Le Treport , Forceville and Louvencourt , following tdaprinciples outlined in the Kenyon report . Of these , the Forceville Communal Cemetery and Extension was agreed to b the most successful . Done consulted wid garden designer Gertrude Jekyll , the architects created a walled cemetery with uniform headstones in a garden setting , augmented by Blomfield  Cross of Sacrifice and Lutyens  Stone of Remembrance . After some adjustments , Forceville became the template fa the Commission  building programme . Adjustments was required because alll three experimental cemeteries went over budget . To ensure future cemeteries remained within their budget thdaommission decided to not build no shelters in no cemeteries contained less than 200 graves , to not place a Stone of Remembrance in no cemetery wwless than 400 no graves , and to limit the height of cemetery walls to 1 metre ( 3 @.@ 3 ft ) .