Northern Garden Sheds | Sheds Newcastle | Sheds Scotland | Summer Houses Newcastle

Premium Shed Specification

All of our sheds are built using high-grade, slow-grown redwood timber and carefully selected materials to deliver exceptional strength, durability and long-term performance.

Wall Thickness Options

Our buildings are available in:

• 19mm or 22mm slow-grown redwood tongue & groove, pressure-treated using Tanalised® timber
• 28mm loglap for a superior heavy-duty finish with enhanced strength and visual appeal

Strong Structural Framework

• 3×2 CLS framework fitted as standard throughout
• Optional 4×2 CLS roof upgrade for increased strength and superior load-bearing support

Finished sizes:
3×2 CLS = 63mm × 38mm
4×2 CLS = 89mm × 38mm
Rounded edges provide a smoother, safer and more refined finish.

Roof & Floor Construction

• 15mm redwood tongue & groove roof boards
• 19mm redwood tongue & groove floor
• 90kg heavy-duty green mineral polyester felt for long-lasting weather protection

Doors & Windows

• 24” × 18” horticultural glass window (3mm, non-opening as standard)
• 18” black medium tee hinges (upgrades available)

Tanalised® Pressure-Treated Timber

All of our timber is pressure treated using the Tanalised® process, which forces preservative deep into the wood under high vacuum and pressure. This provides outstanding protection against:

• Rot and fungal decay
• Insect attack
• Weathering and moisture

This treatment delivers an expected service life of up to 60 years for internal timbers and up to 30 years for external timbers, even in demanding outdoor environments. The green tint naturally fades to a warm honey brown and then to a silver-grey over time.

No Sheet Materials — Ever

We never use OSB, plywood or chipboard in any of our buildings. Every shed is constructed using solid tongue-and-groove timber, ensuring a stronger, longer-lasting and more premium finish.

Free Installation – Site Requirements

To qualify for our free fitting service, your garden and installation area must meet the following requirements. These ensure your building can be installed safely, correctly, and to the highest standard.

1. Base Requirements

A complete, flat and solid spirit level base must be prepared before delivery.

If you intend to use sleepers or a timber frame please contact us to discuss the requirements before ordering.

2. Access Requirements

There must be clear and unobstructed access to the base, including a minimum height clearance of 7ft 8in so panels can be carried safely into position.
(Standard doorways are not suitable for this.)

If your access is restricted, please contact us before ordering — in most cases we can provide a suitable solution.

For insurance and safety reasons, our installation team cannot lift buildings over garages, houses, or other structures.

3. Working Clearance

We require at least 8 inches of clearance around all sides of the building. This allows space for roof overhangs, fascia boards, and for our team to work safely and accurately.

Important Notice

If your base or access is not suitable on the day of delivery:

• Your building will be delivered but not installed
• The free fitting service will be forfeited
• A return installation fee will apply if we need to come back (cost depends on building size and location)

To avoid delays or additional charges, we strongly recommend checking your site carefully before your delivery date.

12 month guarantee is offered with all our sheds and summer houses (including roofing felt).

Please note as the timber is tanalised pressure treated it is wet and needs to dry out when the building is first installed, this can take up to 4 weeks however it could be considerably longer in the winter months due to the colder temperatures.

We advise not using the shed for the first 2 weeks after installation and leaving your doors and windows open as much as possible to help speed up the drying out process.

If you are planning on insulating your building we advise leaving a minimum of 3 months before doing so, again this may be longer in the winter months due to the colder temperatures.

Our buildings do not have any ventilation and it is advised to open your doors at least every 2-3 days to prevent condensation from occurring. If you are not planning on using your building regularly then we strongly advise adding air vents which will help with condensation. We offer the service of fitting air vents at a cost of £60 for 2.

Due to the moisture content of pressure-treated (tanalised) timber, temporary surface mould may occasionally develop, particularly in damp or poorly ventilated conditions. This mould is superficial and does not affect the structural performance or preservative treatment of the timber. Routine care, including improved ventilation, gentle cleaning with a mild fungicidal wash or diluted household disinfectant, and allowing the timber to dry thoroughly, will effectively remove surface mould. Ongoing airflow and periodic maintenance will help minimise reoccurrence and ensure the shed remains in optimal condition.

Payment methods:
We require 10% deposit on placing an order and we accept:-

• Cash on delivery
• Card payments 2 working days before delivery
• Bank transfer 2 working days before delivery date

We deliver 6 days a week and our Workshop is open:-
Monday - Friday 8.30am - 4.30pm
Saturday - 9.00am - 1.00pm (display units for viewing only - the office is closed)
Sunday - Closed

Telephone before visiting our workshop as we are not always there due to deliveries.

Please feel free to contact us outside opening hours via telephone or e-mail we will aim to get back to you within 24 hours.

Northern Garden Sheds Ltd.
Unit 3, Chainbridge Road, Blaydon Park Industrial Estate, Blaydon, Newcastle Upon Tyne, NE21 5ST.

Tel: 0191 414 7719