Building decking – part one

Winter is over – what better time to turn thoughts to the garden.  The extension build took quite a toll on our poor old garden, so stage one of the garden recovery is to construct some decking.


One of the perks of my job is access to SolidWorks 3D CAD software.  So the decking design work was an opportunity to put the software to good use – especially using the “weldments” commands to build the framework and deck using the correct size timber and boards.

After consulting some good reference material over at the Ultimate Handyman site, I designed the frame and SolidWorks kindly worked out how much timber I’d need.

Shopping list

  • 150 x 50mm joists, pressure treated, C16 grade timber.  If the deck wasn’t partially elevated I could have got away with smaller and cheaper joists
  • Wickes decking boards
  • 100 x 100mm fence posts, pressure treated
  • Hole borer (hired)
  • Postmix concrete to fix the fence posts
  • Weed control fabric
  • M12 x 180mm Through bolts to fix the ledger board to the house
  • Nails, long ones and short ones, galvanised
  • Decking screws
  • Joist hangers
  • M12 nuts and threaded bar
  • Probably a few other bits and pieces…


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