Steel Garden Shed Assembly

We have gone to great lengths to ensure our steel sheds are some of the easiest to assemble, with clear and concise instructions. Here is a brief outline of how to assemble your new garden shed. The process is the same for both Galvo and Garden Master sheds.

The boxed shed is delivered in small pieces making handling and transporting easy and economical. Your shed kitset will come in one cardboard box and in most cases a longer plastic wrapped channel pack. With Garden Master sheds the door is pre-assembled and pre-hinged. Comes complete with screws, rivets and a drill bit. Floor sold separately.

garden master sheed

The Basic Steps

Step 1:
Unpack the kitset and read the instructions. Have your tools on hand.

Join the sheets to form the wall panels (pictures 1 and 2)

Fix channels to top and bottoms at every 2nd rib (pictures 3 and 4)

joining two overlapping steel sheets red riveter and colourtseel sheet mans hands on shed panels man drilling shed panels

Step 2:
Fit and fix “L” flashing (picture 5).  Bear in mind your shed door is already assembled and pre-hinged by our team. Complete all panels as per above and have them ready to erect your shed.

Now just join your corners (pictures 6 and 7)

drill and steel panel corner of shed being assembled on floor main inside partly built garden shed

Step 3:
Slip the shed roof on and fix to the four walls (see picture 8 and 9).

men assembling garden shed walls rivet gun and steel sheeting

You can download the assembly instruction sheet for a Garden Master GM2315 or Galvo GVO3023 to see the detailed instructions we provide.

You can also take advantage of an assembly service to erect your garden shed if preferred, such as Pegasus Services who operate nationwide.

Do not attempt in wet or windy conditions. Hand and foot protection must be worn. Make sure your shed is well secured to floor.  See concrete and timber floor specifications here.

Garden Shed Assembly Videos

In addition to written instructions, there is a series of assembly videos. See for yourself just how simple these sheds are to build.



Garden Master’s app is the perfect pocket companion for anyone building a new Garden Master shed. Step by step instructions are right here at your fingertips with short, helpful video content that will have your new shed looking great in no time at all!

Available on iOS and Android.