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Discuss Who knew tape measures could be so complex! in the Tiling Tools Forum area at TilersForums.co.uk.

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  1. Plan Tec Tiling

    Plan Tec Tiling Administrator Staff Member Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Wimborne, Dorset
    It seems that every day is a school day. Marc ( @3_fall@3_fall ) and a few of us were discussing tape measures today (yes we really do find these things interesting! :D).
    It seems that your trusty old tape measure may not be as trusty as you thought!!!


    It’s something most tilers take for granted, but when you’re in the market for a new tape measure, did you know some are more accurate than others?

    All professional tape measures must meet industry standards which set guidelines for accuracy and margin of error. How closely a tape meets the guidelines dictates how it will be classified. The EU Weights and Measures act categorises tape measures into three separate classes: I, II and III.

    As an example let’s compare a class I with a class II tape. EU guidelines state a class I tape up to 2m in length must be accurate to within a margin of 0.3mm. Under the same guidelines a class II tape of the same length should be accurate to within 0.7mm.

    What level of error can be expected?

    EC tape measure accuracy tests are carried out at 20°C based on a pulling force of 50 Newtons for steel tapes and 20 Newtons for fibreglass equivalents. The following table should help you see the difference between Class 1 and Class 2 tapes.

    -Blade Length(m)
    Class I (mm)
    Class II (mm)

    2
    ± 0.3
    ± 0.7

    3
    ± 0.4
    ± 0.9

    5
    ± 0.6
    ± 1.3

    8
    ± 0.9
    ± 1.9

    10
    ± 1.1
    ± 2.3

    15
    ± 1.6
    ± 3.3

    20
    ± 2.1
    ± 4.3

    25
    ± 2.6
    ± 5.3

    30
    ± 3.1
    ± 6.3

    50
    ± 5.1
    ± 10.3

    100
    ± 10.1
    ± 20.3

    0.3mm doesn’t sound like much but for some professions it’s the difference between success and failure – there are some jobs where there really is little margin for error and tiling certainly can be one of these professions where only the most precise measurements will do. This is when we could almost certainly do with a class 1 tape measure.

    While most tape manufacturers specialise in producing multi-purpose class II (known as EC Class 2) tapes for a broad market there are a few who pride themselves on manufacturing class I, professional grade tape measures. Fisco and Advent class I tape measures are two of only a few manufacturers to produce high quality, accurate and value for money class 1 tapes. All Fisco and Advent class I tapes meet EU Weights and Measures standards.




    Well there you have it.... next time you have a measure in your hand, just take a looksie to check if it is a class I, II or III (it's written on the tape steel and/ or on the casing). If it's a class III then you may want to invest in a new one!!!
     
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  2. antonio

    antonio Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    italy
    grade 1, only gynecologists use them.
    and then the European measures, do not serve it to you
    :)
     
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  3. callatiler

    callatiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Aberdeen
    As long as you use the same tape to measure, mark and cut then not a problem, only becomes a problem when say you measure then tell someone else to mark and cut with a different tape.
     
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  4. Adey1980

    Adey1980 Trusted Advisor Professional Tiler Top Contributor

    Location:
    Caerphilly
    Stanley tape measure

    image.jpg
     
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  5. jcrtiling

    jcrtiling Professional Tiler TTA Member

    Location:
    Salisbury
    What allowance do they take into consideration for the amount of adhesive stuck on the end
     
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  6. Plan Tec Tiling

    Plan Tec Tiling Administrator Staff Member Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Wimborne, Dorset
    Or measure using a tape, then use measuring bar on cutter
     
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  7. jcrtiling

    jcrtiling Professional Tiler TTA Member

    Location:
    Salisbury
    I use a Stanley with metric only on it . I hate measuring one side in imperial and the other in metric .
     
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  8. Andy Allen

    Andy Allen Metro specialist & forum entertainer! Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Gloucester
    REALLY......... :)
     
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  9. Localtiler

    Localtiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Yorkshire
    I use ft and inches, like all Yorkshire men!
     
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  10. 3_fall

    3_fall Administrator. Staff Member Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    SW London
    Andat 6’7” Andy, you sure do use a lot of them. :D
     
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  11. Wishiwasatoptiler

    Wishiwasatoptiler I'm either plastered or out on the tiles Professional Tiler

    Location:
    Northeast
    20180104_204446.jpg 2 for a tenner just aren't going to cut anymoreo_O
     
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  12. Wishiwasatoptiler

    Wishiwasatoptiler I'm either plastered or out on the tiles Professional Tiler

    Location:
    Northeast
    Screenshot_20180104-205932.png
    Not to deadly priced. Who new this even
    existed...
     
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  13. Plan Tec Tiling

    Plan Tec Tiling Administrator Staff Member Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Wimborne, Dorset
    I didn't until today. I ordered the 5m FISCO metric only big tape earlier today. Will post a review when it arrives :D
     
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  14. 3_fall

    3_fall Administrator. Staff Member Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    SW London
    I agree with that statement Ian, however, what about when it comes to setting out?
    If you’re setting out over a large area, the discrepancy in your tape could throw you out.
    I know it has me.
    I’m far more inclined these days to lay out an area dry to get a start line, whereas for most of my time I’ve measured it out.
    Sometimes it would miss, and that is probably the reason why.
    Measure a 600 and it’ll nearly always measure 600 with any tape, cos we’re talking 0.3-0.7 in 2 metres.
    Measure out 20 linear metres, strike a line and go!
    What do you think your chances are of hitting your start mark are?
     
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  15. callatiler

    callatiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Aberdeen
    Ok so same tape measure looking for centre line of a 40 metre length room you measure in 20 metres one side then 20 metres other side with same tape even if it’s not dead on 20 metres you will just half the discrepancy to split the difference so as long as you use same tape all the time would be ok.
     
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