Timber Raised Pond Design

From Sketchup to pencil and paper, discuss your design and development ideas here.
Tony K
New Member
Posts: 1
Joined: Wed Oct 11, 2017 11:09 am
Contact:

Timber Raised Pond Design

Postby Tony K » Wed Oct 11, 2017 11:15 am

I'm building a raised timber pond for the garden and would appreciate some advice on the load bearing capability of the timber structure. The pond is 1.8m x 1.2m and 1.1m high, using 32mm thick, 140mm wide T&G timber and a PVC liner. The corners are notched and very tight with solid interlocking joints. It will hold 1650 litres of water.

I'm trying to work out the pressure on the structure walls and the load bearing capacity of the wood, and prove that the current design is up to it. Also, I wouldn't mind scaling up the design and would like to know how big I can go.

I've made a few calculations and have a good idea of the force on the walls due to hydrostatic pressure, I reckon it is 10.7 N/mm² (1.5psi). I can't figure out how to calculate the bending capability of the timber, it is C16 Grade T&G, 140mm wide. There seem to be plenty of span tables available but they're more concerned with load bearing joists taking the weight along the grain.

Cheers in advance.

JonR
Occasional Poster
Posts: 281
Joined: Sun Mar 02, 2014 8:36 am
Location: Somewhere too near Dartford
Contact:

Re: Timber Raised Pond Design

Postby JonR » Sun Oct 15, 2017 10:05 am

I think I would over engineer it and use sleepers on edge or 6x3 Tan C24's and then clad it in T&G.


Return to “Design/Development”

Who is online

Users browsing this forum: No registered users and 1 guest