How to Tell if Reclaimed Bricks Are Suitable for Reuse
2026-09-03
How to Tell if Reclaimed Bricks Are Suitable for Reuse
Reclaimed bricks can add character, history and authenticity to a project — but not every old brick is automatically suitable for reuse. Knowing what to inspect before buying can help you identify potential problems before the material reaches the build.
Whether you are restoring a period property, matching an existing elevation or simply looking for a reclaimed building material, reclaimed bricks can be an excellent choice.
Their age alone, however, does not guarantee that they will be suitable for a particular project.
Bricks may have been exposed to decades of weathering, previous structural movement, inappropriate mortar or damage during demolition, cleaning and storage.
Character, weathering and colour variation can be desirable features. Cracking, significant deterioration and other forms of damage are different and should be assessed before reuse.
Check for cracks and structural damage
Start by looking carefully at the overall condition of the bricks.
Small surface marks, worn edges and signs of previous use are normal with reclaimed materials and can form part of their appeal.
Large cracks, deep fractures or bricks that are beginning to break apart are more concerning.
Minor marks and softened edges may simply reflect age and previous use.
Consider the extent of the damage and whether it affects the intended appearance or use.
Cracks extending substantially through the brick deserve much closer inspection.
Bricks that crumble or fracture easily may not be suitable for reuse.
Inspect the beds, ends and reverse of the brick as well as the most attractive visible face. Damage is not always obvious from a single photograph.
Look for signs of spalling
Spalling occurs when areas of the brick face begin to flake, crumble or break away.
Moisture entering the material and repeated freeze-thaw cycles can contribute to deterioration over time.
The aim is to distinguish desirable signs of age from deterioration that could affect the usefulness of the brick.
Inspect the remaining mortar
Many reclaimed bricks will still carry traces of mortar after being removed from their original structure.
The amount, type and strength of the remaining material can affect how much preparation is required before reuse.
A relatively clean brick may require less preparation before it can be reused.
Substantial attached mortar may increase the preparation needed before installation.
Removing strongly bonded material can risk damaging the face, bed or edges of the brick.
Look for chips, tool marks or other damage that may have occurred during cleaning.
A brick that has already been cleaned may look ready for use, but its faces and edges should still be inspected for damage.
Check the brick dimensions
Reclaimed bricks can vary significantly in size, particularly when they come from older buildings.
Before buying, check the approximate length, width and height of the bricks and compare them with the existing brickwork or requirements of the project.
Record the longest horizontal dimension in millimetres.
Check the width against the bricks or specification being matched.
Differences in height can become obvious across multiple courses.
Slight dimensional variation can contribute to the traditional appearance of reclaimed brickwork. Larger inconsistencies may require additional consideration during installation.
Where possible, check several bricks from the batch. Older handmade and weathered bricks may not all share exactly the same dimensions.
Consider colour, texture and weathering
One of the main attractions of reclaimed brick is the natural variation created through manufacture, age and previous use.
Differences in colour, firing marks, weathering and surface texture can create a finish that is difficult to reproduce with new materials.
Consider the dominant tones as well as the amount of natural variation.
Smooth, creased, weathered and irregular bricks can produce very different results.
Sharp modern-looking edges and softened historic edges can create noticeably different appearances.
A reclaimed batch may contain a natural mix rather than one perfectly uniform shade.
If the bricks are intended to match an existing building, inspect several examples together rather than judging suitability from one particularly attractive brick.
Look for signs of weather-related deterioration
Bricks that have spent many years exposed to the elements may show evidence of weather-related deterioration.
Look for excessive crumbling, blown faces, cracking and areas where the material appears to have lost its integrity.
Look for significant flaking, blown areas or deterioration.
Distinguish natural rounding from material that is actively breaking down.
Deep cracks can be more significant than superficial surface marks.
The demands placed on the brick will depend partly on where and how it will be used.
Where suitability is uncertain, particularly for demanding or exposed applications, seek appropriate professional advice before installation.
Make sure enough material is available
Reclaimed materials are naturally limited by what becomes available from demolition, renovation and salvage projects.
If you need bricks for a larger project, check that the seller has enough from the same batch to complete the intended work.
Once a particular reclaimed batch has been sold, finding bricks with the same dimensions, colour, texture and weathering may not be straightforward.
Reclaimed brick buying checklist
Before committing to a batch, work through the main characteristics systematically.
Look for deep fractures and bricks beginning to break apart.
Check for excessive flaking, crumbling and loss of the brick face.
Inspect how much remains attached and whether cleaning has caused damage.
Measure length, width and height and compare several bricks.
Review colour, texture, edges and weathering across the batch.
Look for blown faces, deep cracks and areas of material breakdown.
Confirm that enough suitable bricks are available for the project.
Consider cuts, wastage and retaining matching bricks for future repairs.
The value of choosing the right reclaimed brick
Good reclaimed bricks offer much more than simply an alternative to buying new.
They can help preserve the appearance of historic buildings and introduce genuine age, variation and character into repair, renovation and construction projects.
The key is understanding what you are buying and assessing whether the condition, dimensions, appearance and available quantity suit the intended project.
Reclaimed character is valuable. Choosing a suitable batch means looking beyond character and understanding the material itself.
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