18′ x 11′ Palmako Olaf Premium (88mm) Multi-room Shed (5.6m x 3.3m)

Overview

The 18′ x 11′ Palmako Olaf Premium is a substantial multi-room garden building designed for those who need serious storage space plus a dedicated workshop or hobby area. Constructed from premium 88mm Nordic spruce with fine-sawn tongue and groove cladding, this garden shed offers exceptional durability and insulation far superior to conventional wooden sheds. The two separate internal compartments—totalling 16.9m²—provide flexibility for different uses, whether you need organised storage, a DIY workshop, or a hobby room.

Key Features

• 88mm thick Nordic spruce cladding for superior weather protection and insulation
• Two separate internal compartments (10m² and 6.9m²)
• Premium fine-sawn tongue and groove construction throughout
• Wide double doors and single door with cylinder locks
• Glass window in smaller section for natural light
• 19mm tongue and groove floor with treated foundation joists
• Ready-made wall elements for simplified assembly
• 5-year parts guarantee

Roof Type

This wooden garden shed features a reverse apex roof constructed from 19mm tongue and groove material. Note that the roof does not include a weatherproof covering and must be purchased separately—choose from SBS Shingles, Charcoal Felt Shingles, or Roof Underlay Felt as an optional upgrade.

Dimensions

External dimensions: 5.6m x 3.3m (18′ x 11′)

• Larger section: 10m² internal floor area
• Smaller section: 6.9m² internal floor area
• Total internal space: 16.9m²
• Reverse apex roof design maximises headroom

Construction

This premium wooden shed is built to exacting standards using Nordic spruce—a dense, naturally durable timber. The 88mm thick cladding provides wind protection and superior insulation compared to standard overlap or shiplap alternatives. Every component uses tongue and groove joinery for strength and weather resistance:

• Walls: 88mm Nordic spruce, fine-sawn tongue and groove
• Roof: 19mm tongue and groove
• Floor: 19mm tongue and groove on treated joists to prevent moisture damage
• Ready-made wall elements speed up assembly
• Comprehensive fixing kit included

Treatment & Guarantee

The shed is supplied untreated to preserve the natural timber. We recommend applying a quality wood preservative within 6 weeks of assembly, then annually thereafter to prevent rot and maintain appearance. Paint can also be applied for a customised look. All components are covered by a comprehensive 5-year parts guarantee.

Doors & Windows

Access to this multi-room building is flexible and secure:

• Wide double doors provide easy access to the larger 10m² section
• Single door allows independent entry to the smaller 6.9m² area
• All doors feature laminated frames and cylinder locks for security
• One glass window in the smaller section provides natural light

Assembly Information

Assembly is straightforward thanks to ready-made wall elements and clear step-by-step instructions. A comprehensive fixing kit is included. Most users find assembly manageable with basic DIY skills, though professional installation is available on request.

Delivery Information

Free delivery to most UK addresses is included with this product. For specific postcode information or special delivery requirements, please contact our team.

Optional Upgrades

Complete your garden building with a weatherproof roof covering:

• SBS Shingles: Thick, torch-on weatherproof felt with exceptional lifespan (professional installation recommended)
• Charcoal Felt Shingles: Attractive and easy to fit, durable long-term option
• Roof Underlay Felt: Simple to install; suitable as temporary covering or underlay for permanent weatherproofing

Frequently Asked Questions

Why is this shed supplied untreated?
Leaving the timber untreated allows you to choose your preferred finish and apply it fresh, ensuring optimal protection and appearance.

Can I use this as a workshop?
Absolutely. The separate compartments make this ideal as a combined storage and workshop solution. The larger space provides ample room for tools and workbenches.

What’s the difference between this and a standard wooden shed?
The 88mm Nordic spruce construction is significantly thicker and more densely insulated than conventional overlap or shiplap garden sheds, offering superior protection and durability.

Do I need to assemble this myself?
Ready-made wall elements and included instructions make DIY assembly feasible, though professional assembly can be arranged.

If you’re looking for alternative garden storage solutions or log cabins for larger projects, browse our full range of garden buildings.