All South Shropshire walks adopt the Ramblers walk grading system. With some local modifications. The three grades most frequently used are Leisurely, Moderate or Strenous:

Easy Access - walks for everyone, including people with conventional wheelchairs and pushchairs, using easy access paths. Comfortable shoes or trainers can be worn. Assistance may be needed to push wheelchairs on some sections.
 
Easy - walks for anyone who does not have a mobility difficulty, a specific health problem or is seriously unfit. Suitable for pushchairs if they can be lifted over occasional obstructions. Comfortable shoes or trainers can be worn. Usually flat walking and taken very leisurely.
 
Leisurely - walks for reasonably fit people with at least a little country walking experience. May include unsurfaced rural paths. Walking boots and warm, waterproof clothing are recommended. Some modest hills and possibly rough ground.
 
Moderate - walks for people with country walking experience and a good level of fitness. May include some steep paths and open country, and may be at a brisk pace. Walking boots and warm, waterproof clothing are essential. Includes a substansial steep hill or a lot of moderate hills. Ascent <600m.
 
Strenuous - walks for experienced country walkers with an above average fitness level. May include hills and rough country, and may be at a brisk pace. Walking boots and warm, waterproof clothing are essential. Challenging hills/mountains. Ascent >600m. 
 
Technical - walks for experienced and very fit walkers with additional technical skills. May require scrambling and use of ice axes and crampons. 

You may occassionally see a Moderate+ grading in the programme, this indicates that generally the walk is Moderate, but come prepared for a steep ascent at some point in the walk.