
Supplier of historical building materials: old oak wood, floorboards, bricks and sandstone slabs, produced and installed in Deensen.
Thomas Knapp Historische Baustoffe GmbH
DeensenNew on Amplifa
About Altholz by Knapp
For over 40 years, Thomas Knapp Historische Baustoffe GmbH has been supplying carpenters, joiners, wood and building materials dealers, restaurateurs and private customers with old oak wood in many forms and qualities. Old oak beams are sawn into dimensional lumber in the company's own sawmill; the range includes historical oak beams, old planks and boards, floorboards, laminated wood and 3-layer panels, seasoned oak beams made from new wood, as well as sun-bleached boards of oak and spruce/fir. In addition, historical bricks, old sandstone slabs and antique terracotta tiles are offered. Reclaimed wood in fixed dimensions can be ordered directly via the online shop altholzladen.de; delivery is also available in large quantities of uniform quality. The in-house joinery produces, among other things, table tops of the GASTROLINE line and the Structure wall cladding and carries out installation at the customer's site. Sustainable reclaimed wood management has been a central theme of the company, based in Deensen, since the early 1980s.
- Site
- Deensen
- Processes
- Sawing old oak beams into dimensional lumber, Joinery manufacturing (table tops 'GASTROLINE', floorboards, 3-layer panels, wall cladding), Installation of products by the in-house joinery, In-house joinery with production and installation, Online shop (altholzladen.de), Cutting to fixed dimensions, Delivery of large quantities of uniform quality, Newsletter
- Materials
- Old oak (reclaimed wood) in four qualities, Oak beams, new wood, seasoned, Sun-bleached boards of spruce/fir, Bog oak, Historical bricks, Old sandstone slabs, Antique terracotta tiles
- Industries
- Carpentry, Joinery, Wood and building materials trade, Gastronomy, Private customers
- 01
Procurement of old oak beams and historical building materials
- 02
Sawing in the company's own sawmill
- 03
Cutting to fixed dimensions
- 04
Joinery manufacturing
- 05
Delivery and installation
Materials and Product Range
Old oak (reclaimed wood) in four qualities
Core product for structural timber, floorboards, furniture and table tops in four sorted qualities.
Oak beams, new wood, seasoned
Seasoned new-wood beams as a complement to the reclaimed wood range.
Sun-bleached boards of spruce/fir
Boards with sun-bleached surface for cladding and projects with a historical character.
Bog oak
Rare material for high-quality one-of-a-kind pieces such as jewellery boxes.
Historical bricks
Historical bricks for construction and design.
Old sandstone slabs
Old stone slabs as historical building materials.
Antique terracotta tiles
Antique terracotta tiles for floors and walls.
Locations

Deensen
DESite with sawmill and in-house joinery
- Materials
- Old oak, spruce/fir, bog oak
- Large sawmill (saw)
Products










Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Sawing old oak beams into dimensional lumberMachining | – | – | – | – | Old oak (reclaimed wood) |
| Joinery manufacturing (table tops 'GASTROLINE', floorboards, 3-layer panels, wall cladding)Assembly | – | – | – | – | Old oak, Spruce/fir, Bog oak |
| Installation of products by the in-house joineryAssembly | – | – | – | – | Old oak |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Saw (large sawmill) | – | – | – | – | Deensen |
Additional services
History
- ca. 1980er
Sustainable reclaimed wood management becomes a central theme
Supplier of old oak wood for over 40 years