I think for the less experienced tilers its something thats really difficult to gauge until your about 2/3 years into your career and tiling constantly. Knowing how long it will take only comes with experience so those asking how much to
tile a small area will get stung most of the time.. either they will undercut and it will take them longer if you base it on a day rate... or they will charge a day rate ++ and lose the job because its to expensive.
Put it this way you charge £150 quid for 3sqm splash back? is 3sqm going to take you a day to fix and about 2hrs the next day to grout up...do you still charge £150 or £75? It might take another guy with less experience 3 days to lay it... 2 1/2 to
tile andd 1/2 day to grout...should he charge £450 ? On a day rate it sounds reasonable but in reality its way to expensive...
When starting out I dont think there is anyway you can base your price accurately on time to install... You will never hit your day rate because it will always take you longer than you think (Ive done jobs (see another post!) where its taken me a week to do a job were 20year guy would take 3/4 days... I do it on a sqm at the moment..and I win my fair share of jobs so my pricing is fairly accurate.
My suggestion at first would be to work out a pricing plan psqm and DONT look at the day rate it hurts to look at it and think what an experienced tiler might be earning..over the months look at the jobs you have won and the price..write on them how long it takes to complete..as similar jobs come in up your price by 10% and see if you still win the jobs after about 2 years you should be able to look at those jobs and say its only taking me *** amount of time and working it out on a day rate I get xxxx and still win the job...... btw 2 years isnt long it will go by very quickly !