This document is an installation manual for the Dunster House RHINE 4.0m x 5.0m (45mm) Log Cabin, model E10-4050R-45. It provides comprehensive instructions for assembling the log cabin, along with details on the components, materials, and maintenance.
Function Description:
The Dunster House RHINE log cabin is a wooden structure designed for outdoor use, likely as a garden office, summerhouse, or storage shed. It is constructed from kiln-dried softwood logs, with pressure-treated bearers for the base. The cabin features a log cabin construction method, where interlocking logs form the walls. It includes provisions for a double glass door and a standard window, with options for additional doors and windows. The roof is designed to be covered with felt or shingles, and optional roof and floor insulation can be installed. Storm braces are included to enhance structural stability.
Important Technical Specifications:
Wooden Parts:
- Bearers (Pressure treated): 32mm (THK) x 47mm (WIDTH) x 3850mm (LNG) - 14 units
- Floor Board T&G: 19mm (THK) x 97mm (WIDTH) x 4760mm (LNG) - 42 units
- Roof Board T&G: 19mm (THK) x 97mm (WIDTH) x 2080mm (LNG) - 122 units
- Wall Logs (various lengths and types): All 44mm (THK) x 121mm (WIDTH)
- A45.5240.70.320.0: 5240mm (LNG) - 2 units
- A45.4990.70.70.0: 4990mm (LNG) - 33 units
- A45.3990.70.70.0: 3990mm (LNG) - 17 units
- A45.1805.70.0.0: 1805mm (LNG) - 6 units
- A45.505.70.0.0: 505mm (LNG) - 28 units
- A45.510.0.0.0: 510mm (LNG) - 11 units
- Bottom Wall Logs (various lengths): All 44mm (THK) x 64.5mm (WIDTH)
- B45.3990.70.70.0: 3990mm (LNG) - 1 unit
- B45.1805.70.0.0: 1805mm (LNG) - 1 unit
- B45.505.70.0.0: 505mm (LNG) - 1 unit
- Top Wall Logs: All 44mm (THK) x 121mm (WIDTH)
- XN45.8R.5490.70.570.0 (Right): 5490mm (LNG) - 1 unit
- XN45.8L.5490.70.570.0 (Left): 5490mm (LNG) - 1 unit
- Apex: 44mm (THK) x 335mm (WIDTH) x 3990mm (LNG) - 2 units
- Purlin + Purlin Support: 45mm (THK) x 140mm (WIDTH) x 5490mm (LNG) - 3 units
- Eaves Edging: 19mm (THK) x 70mm (WIDTH) x 3000mm (LNG) - 4 units
- Fascia Board: 19mm (THK) x 96mm (WIDTH) x 2150mm (LNG) - 4 units
- Storm Brace: 19mm (THK) x 38mm (WIDTH) x 1960mm (LNG) - 4 units
- Trim: 19mm (THK) x 38mm (WIDTH) x 1960mm (LNG) - 19 units
- Trapezoid: 19mm (THK) x 120mm (WIDTH) x 150mm (LNG) - 2 units
- Standard Glass Double Door (45mm): HT 2020mm x WD 1735mm x WALL THICKNESS 44mm - 1 unit
- Standard Window (45mm): HT 1313mm x WD 845mm x WALL THICKNESS 44mm - 1 unit
Nails:
Screws:
- Screw 70mm - 64 units
- Screw 50mm - 108 units
- Screw 35mm - 68 units
- Screw 20mm - 8 units
Bolts:
- M6 Washer - 16 units
- M6 x 80mm Bolt - 8 units
- M6 Nut - 4 units
- M6 Wing Nut - 4 units
Accessories:
- VENTS - SET - 2 units
- Installation Manual - 1 unit
- Door Handle Set and Accessories - 1 unit
- Window Handle Set and Accessories - 1 unit
Optional Roof Insulation (25mm thick):
- ROOF INSULATION P2-PANEL A 2500x1250: 25mm (THK) x 1250mm (WIDTH) x 2500mm (LNG) - 7 units
- ROOF INSULATION P2-PANEL K 2500x415: 25mm (THK) x 415mm (WIDTH) x 2500mm (LNG) - 2 units
- Roof Insulation L Bracket - 16 units
- Roof Insulation Bracket 20mm Screw - 48 units
- Roof Insulation Bracket 50mm Screw - 48 units
- Screw 50mm - 164 units
Usage Features:
- Flexible Layout: The layout of doors and windows can be changed by installing relevant logs on opposite sides of the cabin or the front wall. However, the position of XN logs (top wall logs) cannot be changed and must have the top angle sloping outwards from the middle of the cabin.
- Pre-assembled Components: Windows are pre-assembled, and the door frame comes in separate parts for protection during transport, to be slotted together.
- Adjustable Door Sashes: Door sashes are designed with adjustable hinges to ensure proper alignment and closing.
- Natural Timber Movement: The design accounts for the natural movement of wood, allowing window and door frames to "realign" vertically while staying in position horizontally.
- Storm Brace System: Includes storm braces for enhanced structural stability, which can be installed internally or externally. These are designed with slotted holes to allow for vertical movement of the logs.
- Apex Vents: Circular "slatted" grills on the outside and square "meshed" grills on the inside are provided for ventilation.
- Optional Insulation: The manual details the installation of optional roof and floor insulation for improved thermal performance.
- Extension Compatibility: The manual notes that if an extension is purchased, a separate extension manual set should be consulted.
Maintenance Features:
- Timber Treatment: The cabin requires treatment with a suitable timber treatment (preferably water-repellent) once built, and periodic re-application is necessary. Care must be taken not to apply treatment too thickly to allow logs to move freely.
- Troubleshooting Guide: The manual includes sections for troubleshooting common issues such as door locks not working, doors being stuck, and addressing timber splits, knot holes, and sap.
- Replacement Parts: Dunster House Ltd offers replacement parts for purchase, and defective parts under warranty can be exchanged.
- Warped Timber Installation: Provides tips and tricks for installing twisted or warped timber, acknowledging that wood is a natural product prone to such characteristics. Techniques include using warped timbers lower down, clamping, wetting and weighting, and using a rubber mallet and hitting block.
- Pre-drilling for Screws/Bolts: Emphasizes the importance of pre-drilling 3mm pilot holes for all screws and bolts to prevent timber splitting.
- Regular Checks: Advises checking the cabin's level and squareness at least every 4 layers of logs during construction, and ensuring the base is level and stable.
- Roof Covering: Instructions for installing waterproof membrane, roof felt, or shingles are provided, which are crucial for protecting the cabin from the elements.
- Door and Window Installation: Details how to secure frames with hex nut screws and washers through slotted holes, allowing for natural timber movement.
- Floor Board Installation: Recommends installing floor boards after walls and roof are complete, leaving expansion gaps to accommodate timber movement.
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