If statement

[NZ_Kiwis]

I have this if statement to see if height is greater than 1600 but how can i do it so it's

greater than 1600 but less than 2000 && width....

if ($height > '1600' && $width > '800') {  

$n_width = 450;             

$n_height = 600;
} elseif ($width > '1600' && $height > '600') {  

$n_width = 600;             

$n_height = 450;
}
 

[thorpe]

if ($height > 1600 && $height < 2000 && $width > 800) {