L-shaped corner bed plan

What the materials cost

Pressure-treated (Economy) and cedar (Durable) side by side, from the plan's own shopping list (8' x 6', soil included).

Plan specifications & limitations

• Bed width (reach)

  At most 4 ft, so you reach the middle from both sides

  In this plan: 3 ft arms · Source: fieldreport.caes.uga.edu

• Soil depth

  At least 10 in for most crops; more for root crops

  In this plan: 10 in · Source: fieldreport.caes.uga.edu

• Suggested depth for your crop

  11 in for vegetables

  In this plan: 11 in · Source: fieldreport.caes.uga.edu

• Wall supports

  A support at most every 4 ft along a wall

  In this plan: On every long wall · Source: fieldreport.caes.uga.edu

• Lumber

  New copper-treated (ACQ / CA) ground-contact lumber, or cedar; no railroad ties or lumber treated before 2004

  In this plan: Pressure-treated · Source: extension.oregonstate.edu

• Lumber in a food garden

  Economy uses new copper-treated ground-contact lumber: an Oregon State study found copper moved only about 1 in into the soil and none into the produce. Durable uses cedar. Never use railroad ties or old treated lumber.

• Ground

  Assumes level ground with good drainage. On concrete or pavers, water drains out under the walls.

• Gophers and moles

  Where gophers or moles dig, add the 1/2 in hardware cloth bottom (an option in the wizard).

• Soil

  Bagged soil is estimated from the inside volume; bulk soil by the cubic yard is often cheaper for several beds. Soil settles: plan to top it up.

• Permits and HOA

  Many cities and counties require a permit for structures above 120 sq ft. Some require one for smaller ones. HOA rules may limit size, color or materials. Checking permits, setbacks and HOA rules is your responsibility.

• Not an engineered plan

  The plan is a general guide for a small backyard structure. It is not stamped or engineered, and it is not a substitute for engineering or local approval.