Many experts advise to check your urine for ketones when your blood glucose is more than 240 mg/dl. When you are ill (when you have a cold or the flu, for example), check for ketones every 4 to 6 hours. And check every 4 to 6 hours when your blood glucose is more than 240 mg/dl.
There are calculators that estimate, but you need to determine the pavers you want, because the Sq. Ft. differs from one paver type to another, depending on thickness and paver dimensions. Most brick yards will tell you the Sq Ft when you find a suitable paver. http://www.whiteblockcompany.com/pavers-... (one example) 5.2 pavers per square foot 600 Pattern Pavers on a pallet 115 square feet per pallet Check out the paver worksheet-the last web site below. Source(s): http://garden.lovetoknow.com/wiki/Patio_... http://www.paveloc.com/pages/spectactile... http://www.gertenswholesale.com/info/wor...
$15/sq ft would have to be very high end pavers, a minimum $1.50-$2 per 4x8x2.25 brick pavers. $5,000 for a pergola is insane unless it covers a 30x20 patio then it better be made of black walnut. These jobs are extremely easy, any 18 year old kid with any sense could pick it up off YouTube.