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'Trentan' Supreme Garden Home Offices & Garden Leisure Rooms


Supreme Garden Offices Features
  • 10' x 12' to 18' x 18' Garden Home Offices
  • Tanalised Redwood (not cheap whitewood)
  • Optional Cedar timber (from managed forests)
  • Walls lined with Plywood and Bitumen paper
  • FREE Installation of Garden Office.
  • Bi-Fold doors 84" wide x 70" high
  • Full Length door and windows
  • Fully Double Glazed doors & windows.
  • 15 Years guarantee on Tanalised Timber cladding
  • ANY Size Made
  • Attractive 2ft Roof Overhang
  • Massive 3¾" x 1¾" sturdy diagonal braced framing
  • Coach screwed construction
  • Optional Lining & Insulation, Gutters and Double Glazing
  • FREE Garden Office Buying Guide
Trentan Supreme Garden Home Office
Trentan Supreme Garden Home Office
Click for Trentan Supreme Garden Home Offices Photo Album

The Trentan Supreme is the 'Ultimate' in Home Garden Offices

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Trentan Supreme Home Offices

The 'Trentan' Supreme Home Offices are as versatile as they are beautiful and long lasting. Whether your needs are for a stylish cedar home office, a games room, gym or simply an exquisite space to relax and unwind in your garden then our 'Supreme' home office will tick all the boxes. Optionally made from finest cedar wood from managed forests, the sign of excellence, you will find the rich colour and the solidity of the cedar a natural addition to the outdoors.

Top quality Cedar cladding or Tanalised Timber with 15 year Guarantee - saving you time

The larger 'Supreme' garden home offices are built on a massive 95x45mm (3¾" x 1¾") frame with the smaller ones on a superb 75x45mm (2¾" x 1¾") and are plywood lined for extra strength with a further option to have them fully insulated. Comes as standard with fully double glazed doors and windows - the doors are 84" wide and 70" high . The roofs on these 'Supreme' offices are made from tanalised T& G boards covered in high quality heavy duty green mineral felt with an option for felt tiles, cedar shingles or for a slatted roof. The superb floor is also pressure treated using Tanalith meaning you can expect a very long life with these superb garden offices.

Includes stylish garden office roof overhang for relaxing

With a range of standard sizes, from 10x12 up to 18x18 (larger sizes available) and with many options you can be assured these home offices will meet your long term needs in the garden. Also, the 'Supreme' home office is installed FREE of charge onto your level base.


ERECTED FREE - 90 x 45mm (3¾" x 1¾") Framing - T&G Timber

Click on Size BELOW for Prices & FULL Details or CONTACT us for help

Trentan® Garden Home Offices. Installed FREE

Trentan CedarWood Garden Home Offices 10' x 12'
(3.0m x 3.6m)
10' x 14'
(3.0m x 4.2m)
12' x 12'
(3.6m x 3.6m)
12' x 14'
(3.6m x 4.2m)
14' x 14'
(4.2m x 4.2m)
16' x 16'
(4.8m x 4.8m)
18' x 18'
(5.4m x 5.4m)

Most sizes and designs possible. Double Glazed. ALL timber. Solid Timber Framing.



Trentan Supreme Garden Home Office Spec
Size:3.0m x 3.6m (10' x 12') - up to 18 x 18 as standard, but larger buildings can be made so please ask if you need any other size.
Cladding:16mm (12mm finished thickness) tanalised T&G OR 19mm (15-16mm finished thickness) tanalised T&G (Redwood deal not the cheaper whitewood) OR 16mm (12mm finished thickness) Cedar shiplap. Lined with plywood and bitumen paper between framing and cladding for extra strength and dampproofness.
Framing:Home offices 14' & over have a massive 95x45mm (3¾" x 1¾") frame with the 10' & 12' offices on a superb 75x45mm (2¾" x 1¾"). Thicker in corners.
Roofs:16mm (12mm finished thickness) T & G Tanalised timber covered with heavy duty green mineral felt. Option for felt tiles, cedar shingles or for a slatted roof. Standard roof overhang is 24".
Floors:8' x 2' x 18mm thick press T&G boards on 4" x 2" (nominal) tanalised floor joists.
Door:Four x 21½" wide x 5' 10" (55 x 178cm) high joinery made doors hinged together with piano hinges creating an opening of 7' wide x 5' 10" (213 x 178cm) high. Double glazed with toughened glass.
Windows:18" wide x 65" high (46 x 165cm) joinery made. Double glazed with toughened glass. Number varies with size of home office. Option for extra windows.
Height: Eaves height 6' 6" (198cm) eaves on all garden home offices. Ridge height on 10' wide home offices is 8' 6" (259cm) , on 12' wide is 8' 8" (264cm), on 14' wide is 8' 10" (269cm), on 16' wide is 9' 2" (279cm) and on 18' wide is 9' 4" (285cm).
Treatment:Pressure treated timber offices use the renowned Tanalith treatment, gives the cladding and timber a 15 year life. Cedar garden offices are optionally treated with Tikkurila quality treatment meaning up to 7 years before needing re-treating.
Installation:All our wooden home offices are installed FREE of charge, provided you provide a solid level concrete or paving slab base or timber decked area. Optionally, we have an option for building a timber subframe (some areas) for you. These garden offices are assembled using coach screws for ease of taking it down again if you decide to move. £1 per square feet discount for delivery only.
Insulation:To make best use of these buildings as home offices or all round year summerhouses it is recommended that you line and insulate them, to keep them cool in summer and warmer in winter. We can, optionally, supply and fit insulation and lining.
Alterations:Any size garden home office, including this 10x12 (3.0m x 3.6m), can be made with extra doors, windows or partitions. If not sure please contact us for your personal quote
Support UK:These Trentan Garden Home Offices are made in the UK by experienced craftsmen. You can support our British workers.
Buying Guide:FREE Garden Offices Buying Guide Ensure you make the right decision.
Optional Extras:Double doors, extra windows, 3¾" x 1¾" framing, lining & insulation, guttering.
Sizes:Unless specified as finished size then sizes quoted are before machining which reduces the size quoted by about 3mm. Overall sizes of the Supreme Garden Home Office are nominal METRIC sizes which are slightly smaller than imperial.
Beware of other home offices with before machining measurements. Always check.
Delivery:Cost for delivery varies according to your location.
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