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 Info@Bid4MyJob.co.uk.
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.
Do you have a link to the structure you wish to install?
Ground Preparation
Do you require the contractor to prepare or excavate the ground?
Do you know what type of ground is located where you want to build the structure?

Other Ground Type
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 for MOT 1 substrate required for a base (m3)
Calculated at 0.1m for all bases - https://www.heidelbergmaterials.co.uk/en/ready-mixed-concrete/technical-information/how-to-lay-a-concrete-base
Volume of Ground to excavate for Concrete base (m3)
Total Volume of ground to excavate (m3)
This is the amount of ground to remove for the substrate plus the amount of ground to use for the concrete base.
Loose Volume of MOT 1 substrate required for concrete base
https://mixdesigncalc.co.uk/mot-type-1-calculator/ - 2 tonnes per 1cubic m - 15%-20% reduction this calc does it at 20% - https://www.gardencalc.uk/sub-base-calculator
Volume of MOT 1 substrate required for a Standard Base
https://mixdesigncalc.co.uk/mot-type-1-calculator/ - 2 tonnes per 1cubic m - 15%-20% reduction
Volume of ground to excavate for Base (m3) -
This will be the volume of the concrete base required in addition to the substrate base which is 0.1 ----------------------- Dispose of calculation based on width, length, and height - this will be area of concrete base required 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 https://summerhouse24.co.uk/how-to-make-concrete-base-for-shed/
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 of Concrete
Normalised Test - Dry volume of Concrete
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)
You will require the below number of Standard UK Bags (25kg) of Cement for a 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
You will require the below number of Standard UK Bags (25kg) of Sand for your concrete Base
How much Aggregate for a base is to be used for a Base (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 Base? (25kg)
How much wood for a base frame is to be used?
amount of MOT Type 1 required in Tonnes
Property and Access Details
Project Address

Street Address

Street Address Line 2

CityState / Province

Postal / Zip Code
Does your property have any of the following access? Tick all that apply.

Other
Take Photo of your access point
Will you require use of the garden throughout the project's duration?

Other
Is there any additional information a contractor should be aware of prior to quoting and carrying out the works at the property relating to the project or access?
Please select 3 different dates when the work can commence at your property. To ensure the greatest amount of competition for your work, for each date selected, please ensure they are in different weeks from one another. It is advised to select the first date 2 weeks from todays date.
Please specify the date in second week work can commence at your property.
Please specify the date in third week work can commence at your property.
Contact Details
Are you the homeowner of the property? If not do you have permission to carry out the works defined above?
Contact Name

First NameLast Name
Phone Number
Contact Email
example@example.com
Project Cost Estimation
Contractor Name

First NameLast Name
Contractor Email
example@example.com
Total Estimated Range
Total Estimated Amount
Deposit Amount
Final Agreed Amount
Should be Empty:

Concrete Base Statement of Work Builder

Ground Preparation

Material Costs

Property and Access Details

Contact Details

Project Cost Estimation