[valuepart]

Can anyone help me?  I'm stuck inside with a broken leg - I have had a local builder/handyman putting in some raised beds for me... excellent - but I asked him to dismantle and collect a second hand 6 x 4 greenhose for me - he is now having trouble squaring the green house to start erecting it....any ideas??

Peter

[Ice]

Measure the diagonals, if they are the same it is square. 

[philskin]

if he is working on his own 3 4 5 it this is the foolproof way , measure 3 ft on the narrow end then from the same corner measure 4 ft then hold your tape across these to marks and adjust untill it says 5 ft on the tape that is a perfect right angle

[Steven Rowe]

Wouldnt want this builder/handyman building me anything if he cant square anything  , Im only messing lol, tell him to get him self down to screwfix and buy one of the metal foldable squares, they are great handy tools that every handyman should have,