The service
Built to Handle Manchester Weather
Outdoor joinery has to work harder than anything inside the house, standing up to rain, frost and everyday use while still looking good. LMF Joinery builds timber-clad garden rooms with insulated roofs and glazed doors, raised decking with integrated steps and lighting, and bespoke outdoor structures like built-in seating, all constructed to handle the British weather properly.
Whether it's a full garden room you can use year-round, or a decked area extending your garden living space, the same principles apply as inside the house: proper structural framing first, quality timber and finishes, and a build that's genuinely weatherproof, not just weather-resistant on the day it's finished.
- Timber-clad garden rooms with insulated roofs and glazed doors
- Raised decking with integrated steps and lighting
- Bespoke outdoor structures, from seating to garden buildings
- Proper structural framing for genuine long-term durability
- Built to handle rain, frost and everyday outdoor use
Common questions
Decking & Garden Buildings FAQs
Do garden rooms need planning permission?
Most garden rooms fall under permitted development, but it depends on size, height and the specific property. What a particular project is likely to need is usually talked through as part of the quote.
Can you build decking with steps down to the garden?
Yes, raised decking with integrated steps is one of the most popular outdoor builds, often finished with lighting built into the steps and fencing.
Is a timber garden room usable all year round?
Yes, when built properly with an insulated roof and quality glazed doors, a garden room can be used comfortably throughout the year, not just in summer.
What is the difference between a garden room and a standard shed?
A garden room is built with proper structural framing, insulation and glazed doors, designed to be used as living or working space throughout the year. A standard shed is typically a lighter timber structure intended for storage, without insulation or the weatherproofing needed for regular use in cold or wet weather.
How long does decking or a garden building take to construct?
A standard deck usually takes a few days to a week, while a full garden room takes longer depending on its size and specification, generally one to three weeks. Weather can affect timing on outdoor builds more than indoor joinery, since groundwork and concrete need suitable conditions to go in properly.
Will outdoor timber structures need maintenance?
Timber cladding and decking benefit from periodic treatment, generally every couple of years, to maintain their colour and weather resistance, though quality timber that's been properly detailed for drainage will hold up well between treatments. Composite decking needs little more than a clean.
How do I choose the right builder for a garden room or decking?
Ask about the structural framing being used underneath the finish, not just the cladding or decking boards, since that's what determines how the structure holds up over years of weather. Evidence of planning permission handled correctly on previous jobs is also worth checking, given how often garden rooms sit right on the edge of permitted development rules.
Recent work
Decking & Garden Buildings Gallery
A selection of decking and garden buildings completed by LMF Joinery.




What to expect
Before Any of That Starts
A free site visit and quote cover groundwork, structure and finish before anything is ordered, since outdoor builds depend on ground conditions in a way indoor joinery doesn't. Weather can shift a start date by a day or two, but not the standard of the structural framing underneath. Materials and offcuts are cleared from the garden as the build progresses, not left until the final day.
Why LMF Joinery
Why Choose LMF Joinery for Outdoor Joinery
Built to Actually Handle Weather
Proper structural framing underneath the finish, not decorative outdoor joinery that looks good for one summer.
Garden Rooms Usable Year-Round
Insulated roofs and quality glazed doors mean a genuine extra room, not just a smarter shed.
Same Standard as Indoor Joinery
Outdoor work is held to the same finish and attention to detail as anything built inside the house.
Thinking About Extending Outdoors?
Free, honest quotes on decking and garden buildings across Manchester and Greater Manchester.