Self-Assembly Guide: Building Your Framed Building Step by Step

Framed Buildings · Self-Assembly

Self-Assembly Guide: Building Your Framed Building Step by Step

With the right kit, self-assembly of a framed building is more approachable than it sounds. Thanks to pre-cut mortise and tenon joints and a numbered assembly drawing, most frames go up in a single weekend. Here's what to expect, step by step, and the tools you'll need.

Written by Tom Wegter (team leader IT) and Marc Westerhuis (team leader communications) at Hardwood Discount· last updated: 4 October 2026· Facebook · Instagram · YouTube · Pinterest

Building a modern black or a classic veranda?

The steps below apply to both. What differs is the timber, the colour and the overall look. Choose the style first, then the size. Every veranda is made to measure, in whatever size you need.

FeatureModern black verandaClassic veranda
TimberBlack Douglas firOak (premium, higher price) or Douglas fir (better value)
LookClean lines, black frameNatural timber colour, exposed frame
JointsMortise and tenon, half lap and dovetailMortise and tenon, half lap and dovetail
SizeMade to measure, any sizeMade to measure, any size
Lead time, made to measureAbout 8 weeksAbout 8 weeks
Add laterRoof boarding, walls, glass sliding doors or steel doorsRoof boarding, walls, glass sliding doors or steel doors

Building a modern black veranda

A modern veranda is made from black Douglas fir. The black frame suits new builds and clean, contemporary gardens, and works well with glass sliding doors or steel doors. A flat roof with an EPDM membrane suits this style. Douglas fir is a softwood and is not suitable for ground contact, so the posts stand on concrete pads; see step 1 and our page on veranda foundations. Browse the models under modern black veranda.

Building a classic veranda

A classic veranda is our premium range: generous in size, with an exposed frame, usually in oak and otherwise in Douglas fir. Oak is heavier and costs more; Douglas fir is better value. Solid oak can check and move a little as it dries, which is part of the material. Always use stainless steel screws with oak, as ordinary steel reacts with the tannins and leaves black stains. A pitched roof suits this style. Torn between the two timbers? Read oak or Douglas fir or have a look at the oak veranda.

Need it quicker and on a tighter budget? Our discount veranda is the budget range, with a lead time of about 3 weeks.

Tools You'll Need

A spirit level (ideally a laser level for setting foundations)

A rubber mallet and a sledgehammer

A cordless drill with bit holder

A spade, handsaw and circular saw

2 to 3 people with basic DIY experience

Self-Assembly in 6 Steps

1. Prepare the foundations

Dig a hole at least 40 cm deep for each post and level the concrete footings against each other with a spirit level or laser.

2. Erect the posts

Set the posts in place following the numbered assembly drawing, temporarily bracing each one.

3. Fit the wall plate and braces

Lower the wall plate onto the posts and drive the wooden dowels through the pre-cut mortise and tenon joints.

4. Fit the roof beams

Fit the numbered roof beams onto the wall plate, starting with the load-bearing beams.

5. Roof decking and covering

Fit the roof decking, then cover it with an EPDM membrane to prevent leaks.

6. Side walls (optional)

If needed, build the wall frame and fit the cladding horizontally, board by board from bottom to top.

Do You Offer Installation?

Hardwood Discount does not offer installation ourselves. If you'd rather not self-build, we recommend finding a local builder or landscaping contractor- and we're happy to put you in touch with a trusted professional on request.

Frequently Asked Questions

How long does self-assembly take?

The frame usually goes up within a weekend with 2 to 3 people, depending on size and whether side walls are included.

Do I need DIY experience?

Basic DIY experience is enough. The numbered drawing and pre-cut joints make this manageable even for beginners.

Do you offer installation?

No, we don't install ourselves, but we're happy to connect you with a trusted local professional.