Concrete Base Statement of Work Builder

Concrete Base Statement of Work Builder

This form is used to identify the purpose and dimensions of the concrete base you wish to have installed at your property. By providing measurements and photos of where the base needs to be installed, contractors will be able to ascertain how much labour will be required to carry out the renovation. Should you have any questions please contact Bid4MyJob@yahoo.com.
What is the purpose of the concrete base to be installed?

Other
What is the width (in m) of the outdoor structure you need a concrete base for?
What is the length (in m) of the outdoor structure you need a concrete base for?
Area of Structure
If greater than 15m2 Planning permission may be required
Area of concrete base required.
shed base should be extra 100mm on each side which is 10cm so extra .2 to area calculations. https://tradecalcs.uk/landscaping/shed-base-calculator/
Based on the area of your structure the concrete base thickness (m) should be:
For standard domestic garden sheds under 10 square meters, we typically recommend a minimum concrete base for shed depth of 100mm (4 inches). For larger structures like workshops or garden rooms, we increase this to 150mm (6 inches) to enhance the load-bearing capacity. Premium garden buildings or those housing heavy equipment often warrant bases of 150-200mm with additional reinforcement requirements.
Based on the Standard area of your structure the concrete base thickness (m) should be:
For standard domestic garden sheds under 10 square meters, we typically recommend a minimum concrete base for shed depth of 100mm (4 inches).
Based on the Medium to Large area of your structure the concrete base thickness (m) should be:
This is for premium sturctures. ---- This provides sufficient structural integrity for most typical storage sheds. For larger structures like workshops or garden rooms, we increase this to 150mm (6 inches) to enhance the load-bearing capacity. Premium garden buildings or those housing heavy equipment often warrant bases of 150-200mm with additional reinforcement requirements.
8. Do you have a link to the structure you wish to install?
Ground Preparation and Access
Does your property have any of the following access? Tick all that apply.

Other
Upload a Picture

JPG, JPEG, PNG, or GIF image
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10. Do you know what type of ground is located where you want to build the structure?

Other Ground Type
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JPG, JPEG, PNG, or GIF image
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9. Do you require the contractor to prepare or excavate the ground?
11. Will you require disposal of the excavated ground?
Please note if the volume of substrate to be excavated is greater than 1.69m3 then a skip may be required.
Volume of ground to excavate (m3) - This will be the sum of the concrete base required in addition to the additional substrate base
ispose of calculation based on width, length, and height - this will be are of structure plus x either side plus 100mm - comment could be 50-100mm substrate but this calculatoror is based on 100mm........... A medium to large base is * .25 a small base is *.15
Volume of MOT 1 substrate required for a base (m3)
Volume of MOT 1 substrate required for a Standard Base
Volume of MOT 1 substrate required for a Medium to Large Base
Material Costs

In this calculation we use the following link to provide estimates. https://www.diy.com/ideas--advice/building--hardware/cement-mortar--concrete/concrete-mix-ratios. We use a ration of 1:2:3, 1 part cement, 2 parts sand, and 3 parts aggregate.
Normalised Test - Wet volume
Normalised Test - Dry volume Calculator here https://concretecalculate.co.uk/material-quantity-calculator/cement-bags-calculator/
Normalised Test - How much cement for a base is to be used (KG) for a Standard Base? (1part)
Actual Wet Volume
the wet volume is what has to fill the space so volume of substrate excavated
test - dry volume
this is the wet volume x 1.54 - https://concretecalculate.co.uk/material-quantity-calculator/cement-bags-calculator/
How much cement for a base is to be used (KG) for a Standard Base? (1part)
test cement
How much cement for a base is to be used (KG) for a Standard Base? (1part)
Calculating cement requirements involves determining concrete volume, applying the appropriate mix ratio, and accounting for material density. Standard cement density is approximately 1440 kg/m³, while one 25kg bag occupies about 0.0174 m³ volume.
Wet Volume of concrete for a Standard Base (m3)
Wet Volume of concrete for a Medium to Large Base (m3)
Standard Dry Volume
Medium to Large Dry Volume
How much cement for a base is to be used (KG) for a Medium to Large Base? (1part)
Calculating cement requirements involves determining concrete volume, applying the appropriate mix ratio, and accounting for material density. Standard cement density is approximately 1440 kg/m³, while one 25kg bag occupies about 0.0174 m³ volume.
You will require the below number of Standard UK Bags (25kg) of Cement for a Standard Base
You will require the below number of Standard UK Bags (25kg) of Cement for a Medium to Large Base
How much Sand for a base is to be used for a Standard Base (kg)? (2 parts)
The density of sand is between 1,450–1,600 kg/m³
How much Sand for a base is to be used for a Medium to Large Base (kg)? (2 parts)
You will require the below number of Standard UK Bags (25kg) of Sand for a Standard Sized Base
You will require the below number of Standard UK Bags (25kg) of Sand for a Large to Medium Sized Base
How much Aggregate for a base is to be used for a Standard Base (kg)? (3 parts)
ConditionDensityLoose aggregate1,500–1,600 kg/m³Compacted aggregate1,600–1,750 kg/m³ - for this calculation we used 1450
How much Aggregate for a base is to be used for a Medium to Large (kg)? (3 parts)
ConditionDensityLoose aggregate1,500–1,600 kg/m³Compacted aggregate1,600–1,750 kg/m³ - for this calculation we used 1450
How many bags of Aggregate will be required for a Standard Base? (25kg)
How many bags of Aggregate will be required for a Medium to Large Base? (25kg)
16. How much wood for a base is to be used?
Contact, Property, and Access Details
Homeowner Name
Phone Number
Contact Email
example@example.com
Project Address

Street Address

Street Address Line 2
CityCountyPostal / Zip Code
Should be Empty:

Concrete Base Statement of Work Builder

Ground Preparation and Access

Material Costs

Contact, Property, and Access Details